changing the measurement select to have groups
Creating uniq list for export.
Make sure derived variables are uniq in list.

Also adding site code.
Change measurements back to parameters.
Fix empty <dd>
Change text-align for popup.
Define search for Parameters

This capability adds general discoverability options for database;
can’t necessarily export these other parameters.
Merge pull request #22 from gina-alaska/measurement_revamp_with_groups

Measurement revamp with groups