Current working code for issue 1636. The Jump To filter now changes its contents according to the selected column in the spreadsheet (i.e. User name, Last Name, or First Name)
Updated the code a little to resolve hound comments
Made some more slight clean up as per hound comments
Modified the test script to reflect the change in definition of alpha_paginate function
modified a little to make hound happy
Merge pull request #1684 from gello88/issue-1636

Implementation to allow Jump To fields to be more dynamic. Closes #1636