Merge pull request #455 from alexjacks92/master

Python Scripts
Merge pull request #457 from alexjacks92/master

Added reset command before checkout.
Updated NEWS before release
Removed xdock as suggested by  #379.
Added lock around access of properties to prevent exception during fast changes to table viewer
Updated library versions for 3.0.9 release
Merge branch 'master' of github.com:sleuthkit/autopsy