Tweaks Strike Back

Set a global parameter called $role to be accessed everywhere as it is
required once you logged in to access certain areas. Before I just
slapped it under each action which is repeated code.
RSVP logic needs to change - flow should be initially add a RSVP record,
when user comes back to site they can view their response and edit it.
Began making these changes by modifying the views then will modify the
controller to redirect if they have a RSVP record already.
Cleaning up the other controllers that have the existing $role
parameter.