MWS v1.0.0

• allow ranges in the query (in addition to qvars)
• integration with Elasticsearch
• add index analytics
• allow indexes larger than 32Gb
• simplified build system
• several bug fixes

MWS v0.8.0

• deployed mwsd saves the index in compressed form and reloads it
• each instance runs under a separate user
• instance configuration is done using the mws-config utility

v0.7.0: Fix sysv header provide field.

 - when having multiple mwsd services, the provide field ("mwsd")
 clashed. mwsd_$name should be used instead.
 - fix enable/disable when config is already enabled/disabled.

v0.6.2

Set version to 0.6.2.

v0.6.0

Move token encoding to ExpressionEncoder.

Summary:
 - Merge token encoding in ExpressionEncoder.
 - Update and simplify query engine tests.

Test Plan:
> make
> make test

Reviewers: radu.hambasan, dhasegan

Reviewed By: radu.hambasan

Differential Revision: http://phab.code4fun.de/D45