fixed: Don't remove a job from the processing queue until OnJobComplete has...

fixed: Don't remove a job from the processing queue until OnJobComplete has been done - this function may be time consuming or may lock while waiting on app thread.  Other jobs queued up and waited on by app thread could then cause deadlocks.

(cherry picked from commit d3af3e0a1dc53df86f1b790bee6b5390ba65b205)

git-svn-id: https://xbmc.svn.sourceforge.net/svnroot/xbmc/branches/Dharma@35633 568bbfeb-2a22-0410-94d2-cc84cf5bfa90