removed RSVP_CHOICES as a global variable and added as an attribute for Attendee model
added a m2m field with user through attendee for events model
modified exclude in forms to exclude m2m field
modified a query which fetches attending users from user object using m2m attribute
Chaned the relationship name between Event and User.
Revert "Chaned the relationship name between Event and User."

This reverts commit ee5cb452fcca3cab587f83d3e431b147c74e9000.
Changed name for relationship between events and users.
fixed a bug in index page which was raising an error after creating events. modified the code in views.py
removed unnecessary import pdb
removed rsvp_status null true and blank true  and added a migration file for it
Merge pull request #40 from agiliq/changing_attendee_model

Changing attendee model