* Fix Acorn SL names so they show in the right position in front-ends.
* Fix mistake in BBC Bridge Companion. Thanks to Pernod70.
* Fixed more names. Thanks to Pernod70.
* Some more name fixes.
* Fix names for hardware manufactured by Casper and Torch.
* SL title disc lowercase for coherence.
- Button mappings completely reworked: grey bidding/suit selection buttons classified as keypad inputs and put in correct order, and other buttons as console-standard Start, Select, Button 1-2
- Inputs now read through PIO instead of RAM addresses, making them less hypersensitive
- Manufacturer/publisher is Unicard, as manuals and system/cartridge labels clearly state
- Added release years for some common cartridges
- (nw) Link bbcbc in its own library rather than the unrelated libacorn ("make clean" strongly recommended)
