Remove password_digest from users table (fixes #365)

[markets]

Closes #365

[enricostano]

OMG @markets I love you!

BTW... we're hiring... let's talk about it! 🎣 😂

[sauloperez]

Gogogogo!

[enricostano]

Deployed on https://staging.timeoverflow.org

Logging in with admin@timeoverflow.org I get the following error:

I, [2018-05-28T08:55:20.492048 #5274]  INFO -- : Started GET "/members" for 90.68.31.84 at 2018-05-28 08:55:20 +0000
I, [2018-05-28T08:55:20.496206 #5274]  INFO -- : Processing by UsersController#index as HTML
D, [2018-05-28T08:55:20.501866 #5274] DEBUG -- :   User Load (1.6ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1  ORDER BY users.id ASC LIMIT 1  [["id", 1]]
D, [2018-05-28T08:55:20.507490 #5274] DEBUG -- :   Document Load (1.0ms)  SELECT  "documents".* FROM "documents" WHERE "documents"."label" = $1 AND "documents"."documentable_id" IS NULL  ORDER BY "documents"."id" ASC LIMIT 1  [["label", "t&c"]]
D, [2018-05-28T08:55:20.517133 #5274] DEBUG -- :   Organization Load (1.6ms)  SELECT  "organizations".* FROM "organizations" INNER JOIN "members" ON "organizations"."id" = "members"."organization_id" WHERE "members"."user_id" = $1  ORDER BY "organizations"."id" ASC LIMIT 1  [["user_id", 1]]
I, [2018-05-28T08:55:20.532159 #5274]  INFO -- : Completed 401 Unauthorized in 36ms (ActiveRecord: 4.2ms)
D, [2018-05-28T08:55:20.534903 #5274] DEBUG -- : [Rollbar] Reporting exception: PG::UndefinedColumn: ERROR:  column users.password_digest does not exist

cc/ @markets

EDIT: LOL, if I run the migration first it could help 😅 😂

EDIT2: 🤔 the deploy runs the migrations already... so the migration is up 😬

EDIT3: restarting the unicorn.... #monday

[enricostano]

Tested in staging 💚