JBIDE-15785: Created m2e extension plugin to allow forge-addon classifiers to be detected while running tests
JBIDE-15785: Added org.jboss.tools.forge.m2e.feature
Added m2e feature to site
Explained how to install from Update site locally
Update README.md
System property no longer required for JBM hack.
comment offending snippet in 'plugins/org.jboss.tools.forge.runtime/pom.xml' to make the build work again