Revert "Try to work in Heroku"

This reverts commit 5f6f353e0062528fd19e787448a31c488d328ed4.
Revert "Add User Model with Devise"

This reverts commit 0a76d4411bf5beb49b25ceaaa6dd282b289a4256.
Revert "Use Devise to allow for users"

This reverts commit dae55d243164eb1bd74d93af643f26abb9913429.