PetroRad units in Explore (T2086)

Changed "arcmin" to "arcsec." The fix was done by hand; we should
explore using a metadata query instead.
Fix to SAS connect in SQL Search (T2050)

Reason: the query asks for run/camcol/field but not rerun.

Fix to ResponseAux.cs line 681 added "if (rerunI > -1)".

Tested but please check for side effects.
Merge remote-tracking branch 'origin/raddick' into develop