add pull right behavior on dropdown button to align submenu to the left of the button
rename behavior to AlignmentBehavior + creation of an enum
rename enum values
rename AlignEment > Alignment
Fixes #187 - Create a new transformer every time
Add utility methods to remove CSS class from a ComponentTag
remove alignment css classes before add new ones
fix adding twice alignment class
correct javadoc on AlignmentBehavior
Merge pull request #188 from code-troopers/master

Add option in DropDownButton to align submenu to the right of the button