Added input validation for the course number input using the pattern
HTML attribute.
Cleaned up a lot of code. Changed the search select menus to always have
a value, and changed the course number search uses HTML to validate. Got
rid of the need for searchValidation.js, so I deleted it. The select
menus shown in search now also print how many elements were returned.
If zero are returned, the select doesn't print, and an error message
pops up. Kind of half-assed the case where there's no subjects in the
database. Basically pointed them to the admin and told them to ask
him/her.
Merge branch 'master' of https://JasonDiBabbo@github.com/JasonDiBabbo/PiFilesWebsite.git