Merge pull request #4 from Odoh/master

Odoh changed from bastardized time to standard datetime object.
Added classroom_scraper, to be used to populate the classrooms table in the database with all the goodies. Changed scraper.py to drop and create a new table instead of a new database each time.
Merge pull request #5 from ChrisArcand/master

Added classroom_scraper, changed scraper to remake table instead of db
sane way of choosing source
readme reflection