Merge branch 'development'

Post-Processor tweaks
  * Ignores folders that start with `_unpack` or `_UNPACK`
  * If unable to figure out the quality from the filename, fallback
    to the episode (snatched) status
  * Other minor fixes and fixes to logging / when checks are applied.
    Commit 96d64e65fbc724b0e79b42518f435e46be571e07

Change SB's git/source update routine to hopefully resolve the bug on
updating if you were more than 100 commits behind.

Cleanup Notifiers code. Pull #814 #823
  * Add **Always On** option for XBMC to control if sb should suppress errors
    when XBMC is offline or not.
  * Add logic to notifiers js to catch empty required fields to prevent
    unneeded testing calls.
  * Mention sending notices to Plex Home Theater (PHT), to use XBMC
    (since it mimics xbmc's json api) but with port 3005.

Update **tvdb_api** to latest. Pull #820

NZBGet update. Pull #821
  * Ported Prinz23's NZBGet 9+ appendurl + dupecheck/dupescore code from
    mr-orange's branch.
  * Fix username:password containing special characters.

Tweaked regex to filter out more subbed releases in case the indexer
did not assign them to the foreign category.
ex: `Bates.Motel.S02E07.REAL.PROPER.HDTV.XviD.HebSubs-DR`

Added `webm` to supported media extensions.

Update *rawHD* to support releases
like `Veep.S03E02.1080p.HDTV.DD5.1.H.264-NorTV`. Pull #826

Update local js for jquery 1.9.x compatibility and tweak _browser.js_. Pull #824
  * Added hack that allows users to specify `\\server\path` for a location
    and we load this as the initalDir browse path instead of previously saved value.
  * Set current path to what path we actually did load, in case the previous
    directory was not valid (we load parent folder instead)

Upgrade several js libs to fix IE related issues or to prepare for
upcoming jquery upgrade.
  * Upgrade _tablesorter_ 2.14 -> 2.16.3. Pull #827
  * Upgrade _jquery.form_ 3.35 -> 3.50 Pull #825
    * Fixed Config > Post Processing page not using ajaxForm.

Updated SB-Update message and the Config > Help & Info page to reflect
binary builds are now on GitHub instead of GoogleCode.