first draft of having offers associated with requests upon asking for a ride
refactoring the views to handle accept/decline links for an offer submitted to a ride request
Merge branch 'master' into fuzzy

Conflicts:
	obietaxi/taxi/templates/offer_options.html
	obietaxi/taxi/views.py
fixed some urls to point to new view names
added some more information to user's home page
split up userprofile detail page and user home page
request/offer detail pages will tell the user when they are participating in the trip
made user detail page