Add: security patch rails 4.2*

:star2: add create attendance of an event endpoint

:star2: create user endpoint

:scissors: remove uneeded gems, thanks suspenders.

:fire: force ssl on staging and production

:fire: hotfix: remove all unneeded config

:fire: fix SMTP error on staging

:star2: add validation response for geocoded nearests requests

:star2: add geocoded get request to retrive events within a radius of a geocoded location (lat&lon)

:star2: add validation response for patch update request for an event

:star2: add patch update request for an event

:star2: add validation response for creating an invalid event

:star2: post to /v1/events to create an event owned by the user identified by the device token

:star2: create basic user, an event and attendance join table with a get event endpoint & request spec

:hammer: chore bundle install