BZ1031156 - catch switchyard.xml files being fed to the camel route editor
BZ1031156 - go with a warning diagnostoc
Merge pull request #124 from pleacu/BZ1031156

Bz1031156
This is easy to identify if needed.  Given the source editor works but is not ideal for switchyard.xml - popping up a warning if a user attempts to use the camel route editor on a switchyard XML seems like the best solution.