Fixed an error introduced in the 0.9.2 series, which caused MBeans
for PooledDataSources to be unregistered on close() under names different
from that under which they were registered, creating a memory leak.
Many thanks to Vlad Skarzhevskyy for reporting this issue.
Fixed a rare Connection leak in WrapperConnectionPoolDataSource that occurs when Connection acquisition succeeds but construction of a PooledConnection to wrap it fails with an Exception.