aChannel to Channel, and some more. Third party module coders will
love this. But.. it makes things more logical and the doxygen output
will look more clean and logical as well.
(More changes will follow)
and remove old dependency field (never used, was always NULL,
broken since 3.2.x)
I'll add some constraints later on things like names and versions.
IOTW: more changes to follow, don't mass update your own mods yet.
For example, msgid / message-ids is not a CAP, while server-time is.
There mere fact of something being in CAP or not shouldn't cause
something to be in different directories ;).