Merge branch 'master' into develop
Amended helper of down method
Added migration without docstring
Amended function clean in run
Now method message receives a method to mount message
Added new tests for no docstring migration
Added feedback to user if no have  migrations to run.
New Release
Merge branch 'release/0.0.4'
Merge branch 'master' of https://github.com/globocom/pymigration