JBIDE-15772 Remove referenced juno sites in integration-tests site pom

Our site/pom.xml contains <associateSite> definitions that refer to
juno and soa-tooling update sites. This is no longer needed or
desired.
archives tests updated
Fixes new Cordova Configuration Editor title
JBIDE-15772 remove feature from update site; instead, add plugins directly, as well as their sources; fix installation by providing associateSites for JBT, JBT Core Tests, and Red Deer
fix all manifest.mf files to list correct provider and set bundleshape: jar, bundlelocalization: plugin (JBIDE-16018)
JBIDE-15772 Removed the feature - no longer used

Since Nick changed the update site to use bundles directly,
the whole features/ folder became orphaned. No need to have dead
code in the repo so removing it entirely.