[e4-dev] Use tracing facilities instead of sysout

[Paul Webster <pwebster@xxxxxxxxxxxxxxxxxxx>]

I've added an example of using tracing to the e4 workbench, as well as
a very simple tracing method.  ex: Now the tracing is working, using
org.eclipse.e4.workbench.ui.internal.Activator and
org.eclipse.e4.workbench.ui.internal.Policy:

Activator.trace(Policy.DEBUG_MENUS,
  "Failed to find menu for " + path, null); //$NON-NLS-1$

This should be used instead of any sysouts in the code (the biggest
offenders being myself and Eric, but I've fixed our code :-)
https://bugs.eclipse.org/bugs/show_bug.cgi?id=281100



-- 
Paul Webster
Hi floor.  Make me a sammich! - GIR