dc1394: Don't give up Initialize on noncritical errors.
dc1394: Don't give up Initialize on noncritical errors.

If features don't behave, just skip adding that property.
Also, more cleanup.

git-svn-id: 03a8048b5ee8463be5048a3801110fb50f378627@11709 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd

kmdouglass/Micro-Manager,kmdouglass/Micro-Manager