make sure usage tracks arquillian, aerogear, livereload

We need to make sure usage is reporting the following new components (if present in an eclipse installation):

• aerogear
• arquillian
• livereload

It furthermore turns out that we only track org.jboss.tools.ws.feature but miss org.jboss.toools.ws.jaxrs.feature. Since a user cannot install both separately the current tracking is IMHO sufficient.