NMS-7238-Citrix-NetScaler-events

Corrected UEI and file name typo
NMS-7238-Citrix-NetScaler-events

Corrected event file entry
Normalized XML format
Use org.ebaysf.web.cors.CORSFilter for CORS support.
fixed NMS-6478: bad info node up/node down transaction

Created a couple of events sent by poller when an outage is created
or resolved. Those events are properly managed by rtc

Conflicts:
	features/events/api/src/main/java/org/opennms/netmgt/events/api/EventConstants.java
	opennms-services/src/main/java/org/opennms/netmgt/rtc/DataManager.java
	opennms-services/src/main/java/org/opennms/netmgt/rtc/DataUpdater.java
Include some documentation and pointers for the CORS filter.
Merge remote-tracking branch 'origin/develop' into features/cors-support
Revert "fixed NMS-6478: bad info node up/node down transaction"

This reverts commit 8f08d07a64848bde36f65512d43b1665666f9807.
Add three new WMI memory metrics for measuring memory paging activity on Windows systems
Add WMI disk read/write, queue length and busy/idle statistics for gathering physical disk load metrics on Windows systems
Add win32_OS WMI data collection class and specific metric to get the total amount of memory visible to Windows
Add changed WMI class name for collecting Windows 2008 Terminal Server session statistics
add WMI memory hard faults graph
Add graphs for WMI physical disk transfer rates and correct description and variable name for AvgDiskSecPerTransfer WMI metric
Add WMI physical disk current and average queue length graph
Add graph for WMI physical disk busy and idle time percentages
Add graph for WMI total physical memory
Normalized XML format
Normalized XML format
NMS-6822: Add WMI support for Paging-Disk I/O-Total Memory

- Merged graph definitions for physical disks from 3 in 1 file
- Merged graph definitions for memory from 2 in 1 file
- Renamed from graph defintion file name to fit better in current name schema