Advance version to 1.5.6

git-svn-id: https://get-iplayer-automator.googlecode.com/svn/trunk@586 98b4c264-8670-11de-a133-9d545b4d7674
Updated .gitignore

git-svn-id: https://get-iplayer-automator.googlecode.com/svn/trunk@587 98b4c264-8670-11de-a133-9d545b4d7674
Revert "Resolve ARC related crash when transitioning to the next download."

git-svn-id: https://get-iplayer-automator.googlecode.com/svn/trunk@588 98b4c264-8670-11de-a133-9d545b4d7674
Fixed ARC-related crashes in transition to next download

git-svn-id: https://get-iplayer-automator.googlecode.com/svn/trunk@589 98b4c264-8670-11de-a133-9d545b4d7674
Update to get_iplayer v2.84-4-g0a0fd36

Includes fixes for recent BBC subtitle changes

git-svn-id: https://get-iplayer-automator.googlecode.com/svn/trunk@590 98b4c264-8670-11de-a133-9d545b4d7674
Disabled 4oD

Disabled 4oD as precursor to full removal at time TBD

git-svn-id: https://get-iplayer-automator.googlecode.com/svn/trunk@591 98b4c264-8670-11de-a133-9d545b4d7674