Fix issues with modals

Fixes issues with a select inside a modal with a data-container set to
something outside of the modal (such as body).

Close #324
#427?
Minify
v1.4.2 - modal/data-container bug fix
v1.4.2
Merge pull request #428 from caseyjhol/master

v1.4.2 - modal/data-container bug fix