Implemented 3e cartridge format (3e+ implementation already existed)
Loading of cartridge files over HTTPS
Fixed audio output. The emulation was correct but the SDL audio routines were buggy. Particularly noticeable in H.E.R.O
Corrected how joystick axis and paddle fire react to SWACNT changes. eg. A deflected axis would not update the SWACHA bits when SWACNT was updated. Bug introduced in the reimplementation of the I/O subsystem. Particularly noticeable in He-Man
Playback now processes all events for given TV state. This particularly affected playback of recorded setup events (from the setup sub-system). Bug introduced in the reimplementation of the I/O subsystem.
Added log regression test mode. Renamed digest test to video test (removed audio test).