pony + sendgrid to replace action mailer
additional pony config
initial js file restructuring and removing precompiled assets from public folder
fixed untracked files
add sendgrid verification
Merge branch 'master' of github.com:trinityXmontoya/kitter into login_optimization
update db schema, remove verified attr and add index on username, email, and auth_token for improved querying
update user signup js validations, ensure submit buttons are accordingly disabled and enabled
update user login flow, disable button when no username present, update routes