Update Liebert.events.xml

added some events from LIEBERT-GP-NOTIFICATIONS-MIB and LIEBERT-GP-SYSTEM-MIB from www.emersonnetworkpower.com/en-US/Brands/Liebert/Pages/TheLatestMIBsAvailableforDownloads.aspx
Update Liebert.events.xml

- Removed empty lines
Merge pull request #2 from indigo423/patch-1

Update Liebert.events.xml
NMS-7167: Added new events from Liebert MIB

- Run xmllint --format against the Liebert XML file definition to normalize the config.
Merge pull request #4 from indigo423/patch-3

NMS-7167: Added new events from Liebert MIB
Merge pull request #137 from mfuhrmann/New-Liebert-Events

NMS-7167: Added the following events to support Liebert/Emerson with SNMP traps:
- lgpEventConfigModified
- lgpEventModuleAdded
- lgpEventModuleRemoved
- lgpEventRcpLoadAdded
- lgpEventRcpLoadRemoved
- lgpEventRcpPowerStateChangeOff
- lgpEventRcpPowerStateChangeOn
- lgpSysNormal
- lgpSysNotification