fixed #345
refactored removeColumns function
automatically added build files
fixed handling of last column
updated setting of overflow class
merged with develop
Merge pull request #346 from massiveart/bugfix/add-column

[BUGFIX] add column at right place
Merge branch 'develop' of github.com:massiveart/husky into feature/added-jquery-when

Conflicts:
	dist/husky.min.js