Remove firstdraft gems

[Ben Purinton]

@jelaniwoods Can we remove the firstdraft gems from the Gemfile, e.g. get rid of the github... from these lines:

gem "appdev_support", github: "firstdraft/appdev_support"

I actually just tried to do this, but when I bundled I got

Could not find gem 'appdev_support' in rubygems repository https://rubygems.org/ or installed
locally.

So maybe this change isn't quite ready yet?

[Jelani Woods]

Resolved in 99b07c3