Merge branch 'development'

Add require/ignore words per show. Pull #799
Some notable examples below of using ignore/require words,
also the global ignore words in the webui under search settings.
Ignore webrip or 'xvid' while still getting web-dl.
Require a specific's groups rip, like QRUS or ignore one like mSD.
Grab HD rips but require it to have DD5 audio.
Require VFR (variable frame rate) for the show Top Gear.
Require Uncut or XL versions of a show (since TVDB does not allow 'duplicate' shows).
Do note that the ignore word logic comes before required words. So be careful on what you ignore.
The words are not case sensitive, and if you use multiple words then a release will be rejected if ANY match.

Fix bug on massEdit removing values not displayed (air-by-date, language, release ignore/require words).

Remove superfluous logging message when editing show.

Do not set a show to air-by-date if it contains Documentary -- fixes Top Gear

Update scene_exception url to point new github domain. Pull #810

Change PostProcessing checks and rules. Pull #803
Ignore subfolders that start with . instead of a specific ignore list.
Pass (inherit) nzbName to subfolder
Add postProcessor checks: status, quality/filesize, already processed.
Change use quality from snatch history instead of status quality
Delete empty folder (scripts and automatic modes, not manual).
Change search for airdate in database instead of thetvdb.
Includes PR-620-jayme-github Process files by size but reversed (biggest first).
Stop postprocessing when failing to create destination folder.

Update autoProcessTV to work in python 2 and 3 (note that sickbeard itself only works in 2.5+ and not 3). Pull #802

API and NZBGet cleanup. Pull #804
Updated NZBGet to allow setting username (requires NZBGet v11+).
Updated NZBGet to have real priority for (requires NZBGet v9+) instead of just adding to the top of the queue.
Change NZBGet host field to an url so that people can specify the protocol (http/https).

SB-API: PEP8 fixes, use unicode not string when returning show name for show.refresh / show.pause / show.update.
APIBuilder: Limit show list to 100 shows to ensure performance
(since the show list is used multiple times for different linked list)

Lower default RSS search freq. from 60 min to 40 mins.

Upgrade Jquery UI from 1.10.3 to 1.10.4. Pull #793

Quick pass over our .js to cleanup whitespace, add missing semicolons, url redirect fixes. Pull #795

Handle malformed tvshow.nfo files when using the Add Existing Show page and resolved
the loading indicator to not finish.

Fix Exception on adding the initial rootdir.

Add routines to check or clean config input from the GUI.

Change usenet-crawler to https

Use with openwhen opening/writing files so it will automatically close the file,
even if there is an exception. Applied whitespace PEP8 fixes to the files touched,
also remove obsolete functions using open.

Fix AttributeError exception for metadata if stripping genre/actor name when None. Pull #801

Torrent provider HDbits now supports backlog and proper searches.

Metadata: Mede8er added.
Fix replace empty release group with SiCKBEARD
Merge branch 'fix_naming_RG_empty_when_release_group_empty'

* fix_naming_RG_empty_when_release_group_empty:
  Fix replace empty release group with SiCKBEARD