FlightPath 4.x-4.3.3

Referenced project: 
Release version: 
Release type: 
Bug fixes
Release notes: 

Tweaked _Semester.php so it's easier to override the default semester names at a code level,
and updated admin.module to use those semester names from _Semester.php, rather than hard-coded the way
I had it.

Fixed bug in db_query function, which caused dollar values ($10.75) to be converted to ".75", due to the dollar sign
not being escaped correctly.

Added extra verbiage on student user edit form, to make it clear that a rank code from the Allowed Student Ranks field
must be entered for the student to be searchable.