ZOL changed the way the config_lock is taken in dsl_dataset_user_release_impl
Remove debug prints
We did not match dsl_pool_hold() with dsl_pool_rele() in all exit cases,
causing deadlocks.
Remove unused variable
Turbo reported a few additional unbalanced releases. Some are not in
active code, but we might as well balance them now.
Merge pull request #41 from lundman/0.6.3

Unbalanced hold vs rele in dsl_crypto.c