Fixed #267 Email verification feature (#268)

* <Implemented basic welcome email upon signup>

* <Added config option to enable>

* <Added verification link routing>

* <Added views for verify/resend and reconfigured routes>

* <Finished Verification System minus Rspec changes>

* <Fixed code style>

* <Modified dome rspec tests>

* <Switched sample env back to default>

* <Added test cases to increase code coverage>

* <Added test_helper>

* <Minor code changes>

* <Added requested changes>

* <Added requested changes>

* <see if this fixes migration>

* <see if this fixes migration>

* <fixed migrations>

* Delete .rake_tasks~

* Update _confirm_button.html.erb

* Update _resend_button.html.erb

* Update verify_email.html.erb

* Update verify_email.text.erb

* <Fixed bugs>

* <Added validation of verification link and fixed some code style>

* <Disabled updating email for omniauth>

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20180504131705) do
+ActiveRecord::Schema.define(version: 20180920193451) do
 
   create_table "rooms", force: :cascade do |t|
     t.integer  "user_id"
@@ -42,6 +42,7 @@ ActiveRecord::Schema.define(version: 20180504131705) do
     t.boolean  "accepted_terms",  default: false
     t.datetime "created_at",                      null: false
     t.datetime "updated_at",                      null: false
+    t.boolean  "email_verified",  default: false
     t.index ["password_digest"], name: "index_users_on_password_digest", unique: true
     t.index ["room_id"], name: "index_users_on_room_id"
   end