[ci skip] start 0.2.0-RC4
fixed #27
[ci skip] modified deploy process of production
[ci skip] modified next version
[ci skip] updated dependencies
[ci skip] reverted specs2
update protobuf to 2.6.1
scalaz to 7.1.0
[ci skip] fixed deployment command
add merge master after checkouted
[Aeromock Release Task][ci skip] pre tag commit '0.2.0'.
[Aeromock Release Task][ci skip] - new version commit: '0.2.1-SNAPSHOT'.
ignore venv
start 0.2.1
Merge branch 'master' into feature/0.3.0