diff --git a/Pipfile.lock b/Pipfile.lock
index 8e27baf..3f2ecf4 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -23,36 +23,44 @@
         },
         "cffi": {
             "hashes": [
-                "sha256:267adcf6e68d77ba154334a3e4fc921b8e63cbb38ca00d33d40655d4228502bc",
-                "sha256:26f33e8f6a70c255767e3c3f957ccafc7f1f706b966e110b855bfe944511f1f9",
-                "sha256:3cd2c044517f38d1b577f05927fb9729d3396f1d44d0c659a445599e79519792",
-                "sha256:4a03416915b82b81af5502459a8a9dd62a3c299b295dcdf470877cb948d655f2",
-                "sha256:4ce1e995aeecf7cc32380bc11598bfdfa017d592259d5da00fc7ded11e61d022",
-                "sha256:4f53e4128c81ca3212ff4cf097c797ab44646a40b42ec02a891155cd7a2ba4d8",
-                "sha256:4fa72a52a906425416f41738728268072d5acfd48cbe7796af07a923236bcf96",
-                "sha256:66dd45eb9530e3dde8f7c009f84568bc7cac489b93d04ac86e3111fb46e470c2",
-                "sha256:6923d077d9ae9e8bacbdb1c07ae78405a9306c8fd1af13bfa06ca891095eb995",
-                "sha256:833401b15de1bb92791d7b6fb353d4af60dc688eaa521bd97203dcd2d124a7c1",
-                "sha256:8416ed88ddc057bab0526d4e4e9f3660f614ac2394b5e019a628cdfff3733849",
-                "sha256:892daa86384994fdf4856cb43c93f40cbe80f7f95bb5da94971b39c7f54b3a9c",
-                "sha256:98be759efdb5e5fa161e46d404f4e0ce388e72fbf7d9baf010aff16689e22abe",
-                "sha256:a6d28e7f14ecf3b2ad67c4f106841218c8ab12a0683b1528534a6c87d2307af3",
-                "sha256:b1d6ebc891607e71fd9da71688fcf332a6630b7f5b7f5549e6e631821c0e5d90",
-                "sha256:b2a2b0d276a136146e012154baefaea2758ef1f56ae9f4e01c612b0831e0bd2f",
-                "sha256:b87dfa9f10a470eee7f24234a37d1d5f51e5f5fa9eeffda7c282e2b8f5162eb1",
-                "sha256:bac0d6f7728a9cc3c1e06d4fcbac12aaa70e9379b3025b27ec1226f0e2d404cf",
-                "sha256:c991112622baee0ae4d55c008380c32ecfd0ad417bcd0417ba432e6ba7328caa",
-                "sha256:cda422d54ee7905bfc53ee6915ab68fe7b230cacf581110df4272ee10462aadc",
-                "sha256:d3148b6ba3923c5850ea197a91a42683f946dba7e8eb82dfa211ab7e708de939",
-                "sha256:d6033b4ffa34ef70f0b8086fd4c3df4bf801fee485a8a7d4519399818351aa8e",
-                "sha256:ddff0b2bd7edcc8c82d1adde6dbbf5e60d57ce985402541cd2985c27f7bec2a0",
-                "sha256:e23cb7f1d8e0f93addf0cae3c5b6f00324cccb4a7949ee558d7b6ca973ab8ae9",
-                "sha256:effd2ba52cee4ceff1a77f20d2a9f9bf8d50353c854a282b8760ac15b9833168",
-                "sha256:f90c2267101010de42f7273c94a1f026e56cbc043f9330acd8a80e64300aba33",
-                "sha256:f960375e9823ae6a07072ff7f8a85954e5a6434f97869f50d0e41649a1c8144f",
-                "sha256:fcf32bf76dc25e30ed793145a57426064520890d7c02866eb93d3e4abe516948"
-            ],
-            "version": "==1.14.1"
+                "sha256:005f2bfe11b6745d726dbb07ace4d53f057de66e336ff92d61b8c7e9c8f4777d",
+                "sha256:09e96138280241bd355cd585148dec04dbbedb4f46128f340d696eaafc82dd7b",
+                "sha256:0b1ad452cc824665ddc682400b62c9e4f5b64736a2ba99110712fdee5f2505c4",
+                "sha256:0ef488305fdce2580c8b2708f22d7785ae222d9825d3094ab073e22e93dfe51f",
+                "sha256:15f351bed09897fbda218e4db5a3d5c06328862f6198d4fb385f3e14e19decb3",
+                "sha256:22399ff4870fb4c7ef19fff6eeb20a8bbf15571913c181c78cb361024d574579",
+                "sha256:23e5d2040367322824605bc29ae8ee9175200b92cb5483ac7d466927a9b3d537",
+                "sha256:2791f68edc5749024b4722500e86303a10d342527e1e3bcac47f35fbd25b764e",
+                "sha256:2f9674623ca39c9ebe38afa3da402e9326c245f0f5ceff0623dccdac15023e05",
+                "sha256:3363e77a6176afb8823b6e06db78c46dbc4c7813b00a41300a4873b6ba63b171",
+                "sha256:33c6cdc071ba5cd6d96769c8969a0531be2d08c2628a0143a10a7dcffa9719ca",
+                "sha256:3b8eaf915ddc0709779889c472e553f0d3e8b7bdf62dab764c8921b09bf94522",
+                "sha256:3cb3e1b9ec43256c4e0f8d2837267a70b0e1ca8c4f456685508ae6106b1f504c",
+                "sha256:3eeeb0405fd145e714f7633a5173318bd88d8bbfc3dd0a5751f8c4f70ae629bc",
+                "sha256:44f60519595eaca110f248e5017363d751b12782a6f2bd6a7041cba275215f5d",
+                "sha256:4d7c26bfc1ea9f92084a1d75e11999e97b62d63128bcc90c3624d07813c52808",
+                "sha256:529c4ed2e10437c205f38f3691a68be66c39197d01062618c55f74294a4a4828",
+                "sha256:6642f15ad963b5092d65aed022d033c77763515fdc07095208f15d3563003869",
+                "sha256:85ba797e1de5b48aa5a8427b6ba62cf69607c18c5d4eb747604b7302f1ec382d",
+                "sha256:8f0f1e499e4000c4c347a124fa6a27d37608ced4fe9f7d45070563b7c4c370c9",
+                "sha256:a624fae282e81ad2e4871bdb767e2c914d0539708c0f078b5b355258293c98b0",
+                "sha256:b0358e6fefc74a16f745afa366acc89f979040e0cbc4eec55ab26ad1f6a9bfbc",
+                "sha256:bbd2f4dfee1079f76943767fce837ade3087b578aeb9f69aec7857d5bf25db15",
+                "sha256:bf39a9e19ce7298f1bd6a9758fa99707e9e5b1ebe5e90f2c3913a47bc548747c",
+                "sha256:c11579638288e53fc94ad60022ff1b67865363e730ee41ad5e6f0a17188b327a",
+                "sha256:c150eaa3dadbb2b5339675b88d4573c1be3cb6f2c33a6c83387e10cc0bf05bd3",
+                "sha256:c53af463f4a40de78c58b8b2710ade243c81cbca641e34debf3396a9640d6ec1",
+                "sha256:cb763ceceae04803adcc4e2d80d611ef201c73da32d8f2722e9d0ab0c7f10768",
+                "sha256:cc75f58cdaf043fe6a7a6c04b3b5a0e694c6a9e24050967747251fb80d7bce0d",
+                "sha256:d80998ed59176e8cba74028762fbd9b9153b9afc71ea118e63bbf5d4d0f9552b",
+                "sha256:de31b5164d44ef4943db155b3e8e17929707cac1e5bd2f363e67a56e3af4af6e",
+                "sha256:e66399cf0fc07de4dce4f588fc25bfe84a6d1285cc544e67987d22663393926d",
+                "sha256:f0620511387790860b249b9241c2f13c3a80e21a73e0b861a2df24e9d6f56730",
+                "sha256:f4eae045e6ab2bb54ca279733fe4eb85f1effda392666308250714e01907f394",
+                "sha256:f92cdecb618e5fa4658aeb97d5eb3d2f47aa94ac6477c6daf0f306c5a3b9e6b1",
+                "sha256:f92f789e4f9241cd262ad7a555ca2c648a98178a953af117ef7fad46aa1d5591"
+            ],
+            "version": "==1.14.3"
         },
         "chardet": {
             "hashes": [
@@ -71,28 +79,31 @@
         },
         "cryptography": {
             "hashes": [
-                "sha256:0c608ff4d4adad9e39b5057de43657515c7da1ccb1807c3a27d4cf31fc923b4b",
-                "sha256:0cbfed8ea74631fe4de00630f4bb592dad564d57f73150d6f6796a24e76c76cd",
-                "sha256:124af7255ffc8e964d9ff26971b3a6153e1a8a220b9a685dc407976ecb27a06a",
-                "sha256:384d7c681b1ab904fff3400a6909261cae1d0939cc483a68bdedab282fb89a07",
-                "sha256:45741f5499150593178fc98d2c1a9c6722df88b99c821ad6ae298eff0ba1ae71",
-                "sha256:4b9303507254ccb1181d1803a2080a798910ba89b1a3c9f53639885c90f7a756",
-                "sha256:4d355f2aee4a29063c10164b032d9fa8a82e2c30768737a2fd56d256146ad559",
-                "sha256:51e40123083d2f946794f9fe4adeeee2922b581fa3602128ce85ff813d85b81f",
-                "sha256:8713ddb888119b0d2a1462357d5946b8911be01ddbf31451e1d07eaa5077a261",
-                "sha256:8e924dbc025206e97756e8903039662aa58aa9ba357d8e1d8fc29e3092322053",
-                "sha256:8ecef21ac982aa78309bb6f092d1677812927e8b5ef204a10c326fc29f1367e2",
-                "sha256:8ecf9400d0893836ff41b6f977a33972145a855b6efeb605b49ee273c5e6469f",
-                "sha256:9367d00e14dee8d02134c6c9524bb4bd39d4c162456343d07191e2a0b5ec8b3b",
-                "sha256:a09fd9c1cca9a46b6ad4bea0a1f86ab1de3c0c932364dbcf9a6c2a5eeb44fa77",
-                "sha256:ab49edd5bea8d8b39a44b3db618e4783ef84c19c8b47286bf05dfdb3efb01c83",
-                "sha256:bea0b0468f89cdea625bb3f692cd7a4222d80a6bdafd6fb923963f2b9da0e15f",
-                "sha256:bec7568c6970b865f2bcebbe84d547c52bb2abadf74cefce396ba07571109c67",
-                "sha256:ce82cc06588e5cbc2a7df3c8a9c778f2cb722f56835a23a68b5a7264726bb00c",
-                "sha256:dea0ba7fe6f9461d244679efa968d215ea1f989b9c1957d7f10c21e5c7c09ad6"
-            ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==3.0"
+                "sha256:22f8251f68953553af4f9c11ec5f191198bc96cff9f0ac5dd5ff94daede0ee6d",
+                "sha256:284e275e3c099a80831f9898fb5c9559120d27675c3521278faba54e584a7832",
+                "sha256:3e17d02941c0f169c5b877597ca8be895fca0e5e3eb882526a74aa4804380a98",
+                "sha256:52a47e60953679eea0b4d490ca3c241fb1b166a7b161847ef4667dfd49e7699d",
+                "sha256:57b8c1ed13b8aa386cabbfde3be175d7b155682470b0e259fecfe53850967f8a",
+                "sha256:6a8f64ed096d13f92d1f601a92d9fd1f1025dc73a2ca1ced46dcf5e0d4930943",
+                "sha256:6e8a3c7c45101a7eeee93102500e1b08f2307c717ff553fcb3c1127efc9b6917",
+                "sha256:7ef41304bf978f33cfb6f43ca13bb0faac0c99cda33693aa20ad4f5e34e8cb8f",
+                "sha256:87c2fffd61e934bc0e2c927c3764c20b22d7f5f7f812ee1a477de4c89b044ca6",
+                "sha256:88069392cd9a1e68d2cfd5c3a2b0d72a44ef3b24b8977a4f7956e9e3c4c9477a",
+                "sha256:8a0866891326d3badb17c5fd3e02c926b635e8923fa271b4813cd4d972a57ff3",
+                "sha256:8f0fd8b0751d75c4483c534b209e39e918f0d14232c0d8a2a76e687f64ced831",
+                "sha256:9a07e6d255053674506091d63ab4270a119e9fc83462c7ab1dbcb495b76307af",
+                "sha256:9a8580c9afcdcddabbd064c0a74f337af74ff4529cdf3a12fa2e9782d677a2e5",
+                "sha256:bd80bc156d3729b38cb227a5a76532aef693b7ac9e395eea8063ee50ceed46a5",
+                "sha256:d1cbc3426e6150583b22b517ef3720036d7e3152d428c864ff0f3fcad2b97591",
+                "sha256:e15ac84dcdb89f92424cbaca4b0b34e211e7ce3ee7b0ec0e4f3c55cee65fae5a",
+                "sha256:e4789b84f8dedf190148441f7c5bfe7244782d9cbb194a36e17b91e7d3e1cca9",
+                "sha256:f01c9116bfb3ad2831e125a73dcd957d173d6ddca7701528eff1e7d97972872c",
+                "sha256:f0e3986f6cce007216b23c490f093f35ce2068f3c244051e559f647f6731b7ae",
+                "sha256:f2aa3f8ba9e2e3fd49bd3de743b976ab192fbf0eb0348cebde5d2a9de0090a9f",
+                "sha256:fb70a4cedd69dc52396ee114416a3656e011fb0311fca55eb55c7be6ed9c8aef"
+            ],
+            "index": "pypi",
+            "version": "==3.2"
         },
         "decorator": {
             "hashes": [
@@ -106,7 +117,6 @@
                 "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6",
                 "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.10"
         },
         "pycparser": {
@@ -114,7 +124,6 @@
                 "sha256:2d475327684562c3a96cc71adf7dc8c4f0565175cf86b6d7a404ff4c771f15f0",
                 "sha256:7582ad22678f0fcd81102833f60ef8d0e57288b6b5fb00323d101be910e35705"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.20"
         },
         "pyjwt": {
@@ -168,7 +177,6 @@
                 "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
                 "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==1.15.0"
         },
         "tornado": {
@@ -183,7 +191,6 @@
                 "sha256:c952975c8ba74f546ae6de2e226ab3cc3cc11ae47baf607459a6728585bb542a",
                 "sha256:c98232a3ac391f5faea6821b53db8db461157baa788f5d6222a193e9456e1740"
             ],
-            "markers": "python_version >= '3.5'",
             "version": "==6.0.4"
         },
         "twilio": {
@@ -195,11 +202,10 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:91056c15fa70756691db97756772bb1eb9678fa585d9184f24534b100dc60f4a",
-                "sha256:e7983572181f5e1522d9c98453462384ee92a0be7fac5f1413a1e35c56cc0461"
+                "sha256:8d7eaa5a82a1cac232164990f04874c594c9453ec55eef02eab885aa02fc17a2",
+                "sha256:f5321fbe4bf3fefa0efd0bfe7fb14e90909eb62a48ccda331726b4319897dd5e"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'",
-            "version": "==1.25.10"
+            "version": "==1.25.11"
         }
     },
     "develop": {