Added check for taken username in User
Renamed kwgs to kwargs (fixes #185)
Added ancestor as argument in get_dbs
Update base.py
Merge pull request #187 from topless/patch-2

Added ancestor as argument in get_dbs
Bumped release version
Merge branch 'master' of github.com:gae-init/gae-init

* 'master' of github.com:gae-init/gae-init:
  Update base.py
  Added ancestor as argument in get_dbs