Fixed result content for Season Pack results

Added an extra check into the snatchEpisode method
so that the result.content data for a required
torrent is always downloaded if needed
Renamed bestSeasonNZB to bestSeasonResult

bestSeasonNZB is confusing in this context
we are dealing with results which can be
NZBs or Torrents
Should fix some utorrent, rtorrent and deluge

 problems.
This commit essentially undoes https://github.com/echel0n/SickRage/commit/54afca04725be05a73b4ab009e60cb5b146768cb

The utorrent, rtorrent and deluge methods were still using result.hash to set label, seed ratio and priority etc (instead of torrent_hash which the commit referenced above changed it to).
I've changed it back to result.hash in this commit.

Reference problem posts:
https://sickrage.tv/forums/forum/help-support/bug-issue-reports/7493-utorrent-unable-to-send-torrent
https://sickrage.tv/forums/forum/help-support/bug-issue-reports/7533-sickrage-not-sending-tv-label-to-utorrent
https://sickrage.tv/forums/forum/help-support/bug-issue-reports/7541-bug-rtorrent-unable-to-send-torrent
Merge pull request #744 from sammy2142/patch-1

Should fix some utorrent, rtorrent and deluge
Fixes typo in previous commit
Fix for utorrent label setting

Fix for transmission client
Merge pull request #745 from echel0n/testing

Fix for utorrent label setting
Fixes issues with newznab providers
Fix sorting on mass update page
Merge pull request #743 from garvinob/branch-fix_torrent_seasonpack_downloads

Fixed result content for Season Pack results
Merge pull request #746 from adam111316/mass_update_sorting

Fix sorting on mass update page
Fix ABD shows manual and backlog searches
Merge pull request #749 from adam111316/abd_fixes

Fix ABD shows manual and backlog searches
Change minimum backlog frequency to a more acceptable value
Merge pull request #751 from adam111316/backlog_freq

Change minimum backlog frequency to a more acceptable value
Fix for torrentbytes provider where torrentid is <6 characters long
Fixes rejection of invalid torrent files
Merge pull request #754 from adam111316/fix_blackhole

Fixes rejection of invalid torrent files
Merge pull request #752 from adam111316/torrentbytes_fix

Fix for torrentbytes provider where torrentid is <6 characters long
Added www.kickmirror.com to list of urls to try