Added encryption.
Added interactive option for entering keychain password.
Cleanup.
Fixed key prompt on no action.
Made keyprompt occur before other data entry in [Create] action; added support for changing keys.
Added interactive password prompt.
Added storage of key checksum to the key database.
Shortened command names.
Shortened argument type name.
Increased encryption key size.
Merge pull request #3 from sjindel/master

Added keychain encryption.