--
* Keys can now be queried for information. Onne version queries gnug
directly (asynchronous Promise in javascript terms), the cached
version refreshes on demand.
* Small fixes:
src/Connection.js joins answers that stay json properly now
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* 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.