Here some updates to the event code. The first are changes to
exec/evt.c:
1. manage the base event ID a little better.
2. I also added some private log levels to allow me to selectively turn
on debug output in some sections of the code without turning on
everything.
3. Remove (EVT) from all the printf calls.

The next is an update to the testevt program. I added some cases to test
multiple channel and subscriptions as well as some retained event tests.

BKrev: 417978c5I2I15AFzIQ0zITa5_ESuZQ


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@355 fd59a12c-fef9-0310-b244-a6a79926bd2f