These tests no longer work due to sync only being started after an
account has been added. Functionality of these tests is covered in the
bridge unit tests.
For every update sent to gluon wait and check the error code to see if
an error occurred.
Note: Updates can't be inspect on the call site as it can lead to
deadlocks.
This fixes various race conditions and leaks related to the user's sync
and API event stream. It was possible for a sync/stream to begin after a
user was already closed; this change prevents that by managing the
goroutines related to sync/stream within cancellable groups.
We need to unlock the user keyring anyway to unlock the address keyring,
so we should just return it instead of re-unlocking the user keyring
when sending a message.
