Modified top bar to hook into actual media query for sizing calculations
to avoid a number of misbehaviors resulting from a mismatch between the
media query and the actual width.

Also, fixed an issue with links not being respected due to cancelling
the default event.
Ensure that top bar links can be followed when is_hover is false or on a touch device.  Make sure dropdown will close when tapping outside of top bar
Corrected event names for Clearing documentation
Added missing namespace to event
Only specify line-height on button to avoid clipping input cursor
Modified to tag data-dropdown element with activeClass as well
Merge pull request #3434 from seantimm/seantimm/issue-3434

Top Bar breakpoint may not account for scrollbar resulting in incorrect behavior
Merge pull request #2469 from seantimm/seantimm/issue-2469-dropdownactive

Dropdown add activeClass to button as well
Merge pull request #2435 from seantimm/seantimm/issue-2435-inputclip

topbar search input cutoff
Merge pull request #2131 from seantimm/seantimm/issue-2131

performance problems with clearing