--
* Added unittests to be run inside a Browser. To be able to access
the non-exposed functions and classes, a testing bundle will be
created, containing the tests (unittests.js) and the items to be
tested.
* src/Helpelpers, src/Key, src/Keyring: fixed some errors found
during testing.
--
* Tests: initialization of the two modes, encryption
* gpgme.js: reintroduced message check before calling
Connection.post()
* gpgmejs_openpgp.js: Fixed openpgp mode not passing keys
* index.js: fixed some confusion in parseconfig()
* Inserted some TODO stubs for missing error handling
