Rename GTM-related F5 data collection groups (were incorrectly labeled LTM)
datacollection configs changed, update test to match them
bump selenium version, refactor the test base a bit
Merge remote-tracking branch 'origin/1.12' into rc/unstable/1.13.0

Conflicts:
	opennms-config/src/test/java/org/opennms/netmgt/config/DataCollectionConfigParserTest.java
	smoke-test/src/test/java/org/opennms/smoketest/OpenNMSSeleniumTestCase.java