Remove Rails Depedendency

[plribeiro3000]

No description provided.

[houndci-bot]

Prefer double-quoted strings unless you need single quotes to avoid extra backslashes for escaping.

[skull-squadron]

That defies common sense of having a batteries-included pry bundle.

No problem, anyone wanting a sane, easy-to-configure, "Just Works" ™️ pry bundle for either Ruby or Rails or standalone can simply install spirit_hands.

gem install spirit_hands or gem 'spirit_hands'

[plribeiro3000]

Well, i can see your point but i believe its too heavy to depend on railties and activesupport when all you want is pry with some candies. A simple dependency tree will attend both cases where the more complex ones just need to add an extra gem to the list IMHO. =)

This PR was to fix nixme/jazz_hands#8. My real intention was that the original lib didn't die.

If you want to maintain this lib, then go ahead. I will keep maintaining this as a simpler option for non rails projects in the meanwhile.