DhCompletion, a GCompletion replacement

[Sébastien Wilmet <swilmet gnome org>]

Hi,

Just a small announce, I've implemented recently a replacement for
GCompletion in Devhelp. GCompletion is deprecated, but for some
applications it's still useful to have a string completion utility.

https://git.gnome.org/browse/devhelp/tree/src/dh-completion.h
https://git.gnome.org/browse/devhelp/tree/src/dh-completion.c

It's unit-tested and documented with gtk-doc. The API is a little
different, but better suits the needs of Devhelp. It uses a GSequence
internally (instead of a simple GList in GCompletion).

Feel free to copy the code in your project ;-)

Sébastien