Added Twitter as a notification option.
Added ability to disable Download Scanner by setting interval to 0
Added Plex Media Server and Client Update Library and Notification functions.
Pushalot Service Added
Added ability to set a seperate post-processing folder
Fix for issues with what.cd authentication
Fixes what.cd snatches getting stuck at pre-processing with blackhole downloader

Cloudflare requires a user-agent header otherwise will return 403
forbidden.
Fixed URL for The Pirate Bay
convert all icons to font-awesome vector based / retina compatible icons
adding retina logo and favicon, adding retina search icon
user User_Agent from common
add songkick upcoming concerts on ArtistPage
convert all icons to font-awesome vector based / retina compatible icons

Conflicts:
	data/interfaces/default/artist.html
change songkick API Key
Update searcher.py

Fix for KAT
Merge remote-tracking branch 'theguardian/twitter' into develop
Merge remote-tracking branch 'echel0n/disable_download_scan' into develop
Merge remote-tracking branch 'shanlar/init' into develop
Fixed some merge conflicts i webserve.py from the echel0n plex merge
Merge conflicts with pushalot merge