Return exit code 0 when stopping a non-running process

If any other error occurs in the stop script it will just raise an error as expected and not start sickbeard.
Add Vacuum action to history trim/clear functions to reclaim space.
Minor typo fix on ConfigPostProcessing
Merge pull request #870 from thezoggy/dev--history_vacuum

vacuum on history clear/trim
Merge pull request #868 from jeroenj/patch-1

Return exit code 0 when stopping a non-running process in ubuntu init script
Episode Status Management tweaks
* Add 'expand all shows' button
* Add 'toggle all' button
* Add **Unknown** status to be queried (useful to find episodes that belong to a show with invalid location)
* Add options to filter out inital data set
  * Include specials (season0) - before we always excluded
  * Exclude episodes without airdate 'never' - before we always included
Fix pushalot silent/important options.
Add ability to skip notices (snatched/download) per show. PEP8 fixes as well.
Useful for those that fetch shows for their significant others that don't care to get the notification noise. Or if they know they are about get a bunch of notices (backloging a show/season rips) they can quickly turn the notifications off for that show.
Merge pull request #872 from thezoggy/dev--fix_pushalot

Fix pushalot silent/important options.
Merge pull request #871 from thezoggy/dev--esm_update

Episode Status Management tweaks
Merge pull request #867 from thezoggy/dev--exclude_notification

exclude notification