Added php pages and .gitignore.
Changed sample and ui for new data format.
Added the search icon
Some backend changes for prereqs.
Removed .jsonp
Added up and down arrow control over the course result list; removed language courses mapping; slight styling changes
Added subject cache, now subject search works but course number is ignored; added colors for ENV, AHS and other
PHP: Reorganization and added undergrad calendar parsing.
Added some left out language courses to the faculty mapping
changed js a bit.
Added ROADMAP.md
Update ROADMAP.md
fixed bug where after going back to the search loses the search query; converted spaces to tabs
Unified API and ucalendar behavior.
Added internal profiler
Added search result count
Fixed bug where it shows "Found 1 results" when returns only 1 result
Cleaned up backend.js
Removed unnecessary caching