Bug 8588 [3.8.x] Duplicate field IDs cause problems with SQL report parameter entry

Bug 8588 [3.8.x] Duplicate field IDs cause problems with SQL report parameter entry

Reimplemented for 3.8.x: Changes to markup and script to
enable unique ids on form fields. These changes allow for
working label+input pairs on one or more text and select
inputs and multiple working datepickers.

To test, create a report with more than one date parameter,
at least one text parameter, and one or more authorised
value parameters. The datepickers should each work properly,
and labels should by clickable.

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>