GDateTime

[Christian Hergert <chris dronelabs com>]

Hello good folks,

I spent some of my free time recently putting together a DateTime
solution for GLib.  It is starting to get to the point where it is
usable.  Most of the work now seems to be finishing up string parsing,
polish, improving documentation, and i18n/l10n compliance for which I
could use suggestions and comments from the community.

The GDateTime opaque type represents a date and time down to
100-nanosecond intervals between 1/1/1 and 12/31/9999.  I find it
considerably easier to use when compared to time_t, struct tm, and other
limiting time types.

My branch is the "datetime" branch available at
git://git.dronelabs.com/glib.

This is my first attempt at building something for glib so please let me
know if I've not followed some conventions properly.

-- Christian