Making sure a tech exists when starting manual progress and timeupdate events
Trigger one last timepudate when stopping manual timeupdates. fixes #1002
Merge branch 'feature/tech-error' of github.com:heff/video-js into heff-feature/tech-error
Merge branch 'feature/fix-timeupdates' of github.com:heff/video-js into heff-feature/tech-error