set a default callback for header when none is defined
Merge pull request #120 from sulu-cmf/feature/grid-group

[FEATURE] grid-group component
Merge pull request #119 from sulu-cmf/feature/convertable-accounts

[FEATURE] set a default callback for header when none is defined
added current husky
included husky
fixed bug: wrong icon class in type-overlay
included colorpicker-img into build file
added files
added current husky
Update composer.json
Merge branch 'develop' of git://github.com/sulu-cmf/SuluAdminBundle into feature/grid-group

Conflicts:
	Resources/public/js/vendor/husky/husky.js
	Resources/public/js/vendor/husky/husky.min.js