added method for copying language to content mapper
Added copy locale command
cleaned code
Revert "Added copy locale command"

This reverts commit b0a995580ea6c2d91108f3162af6e0d20bf84de0.

Conflicts:
	src/Sulu/Bundle/CoreBundle/Command/ContentLocaleCopyCommand.php
implemented overwrite
Merge branch 'develop' of git://github.com/sulu-cmf/sulu into feature/copy-language
fixed code style
Merge branch 'develop' into feature/copy-language
fixed codestyle
Merge pull request #310 from sulu-cmf/feature/copy-language

Copy language command