Fix VmMultipleContextsStartStopTest to stop the second context so that itit doesn't interfere with other tests. Rename and move a test from Seda to VM.

git-svn-id: https://svn.apache.org/repos/asf/camel/branches/camel-2.10.x@1445903 13f79535-47bb-0310-9956-ffa450edef68