JBIDE-13982 Fixed NPE for as-you-type EL validation for unsupported XML files
JBIDE-13753 - Enable sorting of discovered runtimes
JBIDE-13883 - Externalize Runtime Detection plugins
Merge 'jbide-13908' of github.com:snjeza/jbosstools-base into master

Conflicts:
	runtime/plugins/org.jboss.tools.runtime.ui/src/org/jboss/tools/runtime/ui/RuntimeWorkbenchUtils.java
JBIDE-13972 Deselect All button in Search Runtime dialog does not work properly