run bundle gem pgp to add  gem structure
Clean up whitespace, remove rails specific code/comment
FIXUP add reference to original repo
FIXUP corrected spec version
run rspec --init
Remove unimplemented test
Make KEY_DIR use current if none specified in ENV
Move rake tasks into lib
Add railtie to load rake tasks into rails app
Remove unused plugin hook files
Change PGP class to module
FIXUP name class Client
Add spec examples for critical public_key, encrypt and decrypt