Changed the default mapping for UI select to not trigger on Alt+Enter
fullscreen toggle. (Fullscreen toggle still doesn't work in menus -
actually fixing that is complicated.)
frontend: Made the about box wrap text properly, made the title and
backtrack menu item always visible, and added a footer with the VCS
revision.
frontend: Don't highlight the favourites and info toolbar buttons if
there's no selection (can happen if filters produce no results). Also
made the info viewer appear even if no info is available - it's less
confusing to see an empty menu than wonder why clicking the button does
nothing.
debugger: Added a register points view to the GUI debuggers, to go with
the breakpoints and watchpoints views.
debugger: Extended [brw]p(clear|(en|dis)able) commands to accept
multiple arguments to perform the same action on multiple
(break|watch|register)points at once. Also made rplist accept a CPU for
showing a single CPU's register points ([bw]plist already support this).
docs: Updated registerpoints debugger commands page, and updated other
pages for latest extensions to syntax.
Extended the memory access prefixes in debugger expressions to support
address space names.
Made the debugger history command aware of how much history it has
collected, and added a help topic for it to the built-in debugger help.
Started updating the documentation for the web site, and corrected some
of the more misleading built-in debugger help.
Made some corrections to Chinese localisation after discussion with
YuiFAN.
Darkened the UI red colour a little.
cpu/m6502/st2205u.h: Marked sound imperfect.
