Added test connection button for uTorrent
Added connection test to the rest of downloaders
Small fix deluge
Small fix
Fixed 'connection test' for Transmission and Sabnzbd
Merge branch 'downloaders_test' into downloaders_test_dev

Conflicts:
	couchpotato/core/downloaders/transmission/main.py
Test downloader connection: Check version of uTorrent and Sabnzbd
Added return message text to frontend
Merge branch 'downloaders_test' into downloaders_test_dev

Conflicts:
	couchpotato/core/downloaders/sabnzbd/main.py
rTorrent version check
rTorrent connection test: Version check