Low: oralsnr: ignore listener case during grep for pid
Low: orainstance.sh: the exit_idle function was a no-op because of a malformed grep search
Low: oracledb.sh: Fix exit_idle loop to exit process wait loop correctly
High: oralistener.sh: Do not fail during stop if listener has already stopped
Merge pull request #438 from davidvossel/oracle-fixes

oracle agent fixes