Prepped for initial release

- Added versioning/updated production URL
Fixed empty strings being passed as data

This was breaking some updates, i.e. no instructor on build class.
Basically, ng-SharePoint was detecting a value (empty String) and
sending that up, but the field was actually a number field so it was
causing the create/update requests to fail.  Null values are ignored by
ng-SharePoint to avoid the issue.
Added remember to instructors selectize as well
Fixed IE not parsing instructor ute % bar
Removed duplicate wellCollapse watchers
Fixed .modal-footer padding CSS rule

It was applying too broadly before and messing up other dialogs
Sped up instructor add animation

This was too choppy in IE so we had to speed it up