Issue JBTIS-290 enable jboss tools usage tracking for plugins installed directly
Now both ModeShape Tools plugins can be tracked by the usage tracker.
JBTIS-358, JBTIS-355 add new com.jboss.devstudio.integration-stack.*.feature features to the devstudio/site/. See hackaround on lines 77-92 of devstudio/pom.xml

JBTIS-358, JBTIS-355 switch from includes to requires, so installation is more flexible
refactor switchyard and fuse to o.j.t.i-s namespace; remove com.jboss.devstudio.integration-stack.soa.feature
merge diffs in devstudio/site/pom.xml into jbosstools/site/pom.xml
remove JBDS branding features from o.j.t.i-s.*.features
fix readme
add missing build plugin to JBDS IS site builder (copied from JBT IS site builder)