eb: removing non-needed functions
conf: updating signing key
gpg: adding package for python-gnupg

Will rebuild to include for Ubuntu 12.04 and Debian versions.
eb: adding gpg class and tests for encryption/decryption.

Decryption does not currently function.
lib: adding python-gnupg source
eb: fixing file encryption and decryption
eb: adding test keys
test: updating testing to use new keys
test: updating cfg