MacGui: Queue Update - thanks travistex
- The primary change is that HBJob now copies the relevant fields out of hb_job_s that it needs. It no longer keeps a pointer reference to libhb's job.
- The only time the queue looks at libhb's jobs is when scanning the job list in order to build of the GUI queue display.
- Removed all uses of hb_current_job().
- Canceled jobs now stay listed in the queue, with a canceled icon.
git-svn-id: svn://localhost/HandBrake/trunk@1130
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