v0.5

= Changes from v0.4 =

DF (128k) bank switching

Corrected how the reflection bit affects the playfield

Reading a hotspot will now return the byte at that address for
the following cartridge mappers:
- Atari multi-bank
- CBS
- DF
- Parker Bros.
This fixes "Man Goes Down" (atari F6) which bank expects an instruction
code to be returned on $fff9 access, rather than just zero.

More flexible attachment of peripherals
- better auto switching of controller types
- support for savekey
- more accurate setting of bits in RIOT ports

Savekey debugger windows

Regression Database
- added optional recording of different machine states; in addition
to the existing optional recording of TV state

Log window