Bug 510715 - .project editor broken if test and example are checked out

Replaced org.eclipse.core.runtime.text usage with a sub type to avoid
overlap between tests and editor usage

Change-Id: Id738b525082ed5993b94e78690cb7f3ec42e62b4
Signed-off-by: Lucas Bullen <lbullen@redhat.com>
4 files changed