Promote the toolbar to a masthead to make it more prominent
Move the export button to the new masthead toolbar
Stick the results navbar to top of the window when scroll hits it
Remove debug output
Remove empty arguments head
Check if view is rendered in onPageScroll

Also, remove a superlative empty argument header
Stick masthead below navbar to remove jump when sticking
Move Serrano warning to separate div

The row-fluid class cannot contain more than 12 columns worth of elements
(per Bootstrap's predefined grid size).
Prevent results page scroll handler if isClosed is not defined

This property is not set until it is rendered the first time.
Rename class for consistency
Add box-shadow to masthead when fixed for visual depth
Merge pull request #205 from cbmi/issue-201

Refine ResultsWorkflow toolbar to be more prominent