added error message for when the jakfile is malformed (bad json syntax) and added a message for when you are trying to encrypt/decrypt all but the jakfile does not have the files_to_encrypt value.
added error message for when the jakfile is malformed (bad json syntax) and added a message for when you are trying to encrypt/decrypt all but the jakfile does not have the files_to_encrypt value.

dispel/jak,dispel/jak