[apparmor] [PATCH 0/4] DBus rule parsing

[Tyler Hicks]

Here's the latest set of parser changes needed to support DBus rules.

The second patch, which implements the actual parser support for DBus, is large
but I hope it won't be too bad to review. Do take a close look at it as Lex and
Yacc aren't on any list of skills that I claim to possess (and I'm not sure if
I plan on adding them to this list after this trial and mostly error
experience).

More DBus related patches will soon follow. There are library changes,
regression tests, and profile updates still to come.

Tyler