debugger: Octal cheats for octal address spaces.
frontend: Pass events for automatically generated menu items to the
plugin - they will have index zero.
frontend: Don't try calling the data plugin from the main menu if the
system isn't starting yet - doing so will prevent the data plugin from
loading at all.
* Updated cheat commands to work with arbitrary devices and address
spaces. You can still only search RAM areas in a single address space
at a time, but any address space of any device can be used now.
* Made the cheatinit/cheatrange commands not affect current state if the
arguments are invalid. Also fixed some bugs in the cheat commands.
* Updated documentation for cheat commands, and added a simple worked
example. Also added single-sentence descriptions of what
(break|watch|register)points are to the top of the relevant pages.
-frontend improvements:
* Added a bit more info to the about box, moved the VCS revision to the
heading.
* Don't show "not" codes in prompts - they're not helpful.
* Missed a couple escape sequences. (nw)
* A little more escaping, acronym fixes, fix oddity in symlist (nw)
* Update debugger internal help to match docs (nw)
* Lowercasing for CPU in command parameters, fix casing on ASCII. (nw)
