Signing in via email causes problems with repository.get()

[schwa]

If i use an email and password to sign in I cannot perform operations on my repos:

BB_LOGIN = 'user@example.com'
BB_PASSWORD = 'XXXX'
bb = Bitbucket(BB_LOGIN, BB_PASSWORD)
bb.repository.get('test') ## fails

I'm forced to either sign in via username instead of email or use this following line to update the bb object:

bb.username =  bb.get_user()[1]['username']

[guyzmo]

I actually circumvented this within my own code base using the linked hack — I've added that method in the Bitbucket subclass out of laziness.

I'm pushing that fix to repository.get() as a PR.