fixed ap-week schedules
 - changed schedules for 5/5, 5/6, 5/12, 5/13 (Mondays and Tuesdays of AP weeks) to 1a and 2b respectively (Extra Help instead of School/Class Meeting)
 - removed old changelog (should be kept in GitHub releases instead)

Conflicts:
	index.html
Update README to reflect recent changes
bumped version number
added link to changelog from version number

Conflicts:
	index.html
Merge branch 'gh-pages' of https://github.com/HarkerDev/bellschedule into gh-pages