Update Dependencies

# Major Releases
* Better Errors 1.1.0 => 2.0.0
* Timers 1.1.0 => 4.0.0
* dotenv-rails 0.11.1 => 1.0.2

## Added
* dotenv-deployement gem in order to load env specific .env files (this was removed from dotenv in version 1)

## Minor/Patch Releases
Lots...I'll do some browser testing.