Merge pull request #1 from zurb/master

updating my copy of foundation
Account for case where event has no originalEvent
Merge pull request #1530 from mattolson/master

Closes Issue #1529
Merge pull request #2 from zurb/master

Sync w/ Zurb
This commit provides a complete makeover for the custom drop down implementation.
Merge pull request #1543 from dboskovic/improved-custom-forms

Improved custom forms
Merge branch 'master' of https://github.com/zurb/foundation