initial work on implementing the Select2 picker
more work on the select2 picker: minimum size, support for bs < 3,
properties added & configured for the Designer control, support for
templates
Merge branch 'master' into dev-select2picker
finishing up the select2 implementation. Added a new control that can be
linked to an existing Combo/ List Box.
removed the "danger" style from cancel buttons
Merge remote-tracking branch 'openntf-src/master'
Merge pull request #39 from markleusink/master

Select2 picker implemented, removed "danger" class from Cancel buttons