updating upgrade script to use UTC timestamps *facepalm*. God, I hope I didn't break anything...

(first pass #1155)
removed all 0.3.x related upgrade scripts, and updated minSchemaDate
final pass, resolved #1155
removed unused imagemagick require
Merge branch 'master' of https://github.com/designcreateplay/NodeBB
closes #1130
Merge remote-tracking branch 'origin/master' into webserver.js-refactor

Conflicts:
	src/routes/user.js
merging changes from deprecated routes/user.js