Silly typing bug should be fixed now

There was a bug in CVS Conglomerate, in which typing support was totally
broken: any kind of typing either put the characters you typed at the
front of the current text node regardless of the cursor location, or
crashed Conglomerate.

I tracked this down and fixed it last night; turns out I misunderstood
part of the glib API when I was fixing string handling in cong-command.c
so that it compiled cleanly with GCC4 (since libxml2 and glib use
different character types and allocation/deallocation routines).

I committed a fix last night, so it should work now.  I plan to do a
tarball release in the next day or so...

Dave