Improvements:
- Collector installer now uses Bash and interfaces with systemd. If you download 28.500 on v120 it will still use Perl.
 - !logsurf debug command will now show details for Test Script.
 - PIDs are now logged for troubleshooting external scripts.
 
Fixes:
- Fixed bug that broke SNMP collection when two resources have the same IP address and different host names.
 - Avoid potential false No Data reported for Ping data collection when restarting Collector.
 - Fixed issue that would cause some NetFlow v9 data to be discarded in some circumstances.
 - Fixed issue that would cause Ping check to errantly return status 24 in edge cases.
 - Fixed a memory leak in the syslog collector.
 - Fixed bug that would cause JDBC collection to fail if special characters were in the URL.