Updated to reflect the existence of gthread.

Updated to reflect the existence of gthread.

1998-12-16  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>

	* docs/glib-config.1: Updated to reflect the existence of gthread.

	* gmain.c (g_main_poll_add_unlocking): Changed
	g_main_poll_add_unlocked to g_main_poll_add_unlocking to match
	semantic, (indeed, main_loop must be locked, when calling this
	function). Removed the unlocking from the end of that function, as
	that is not right. Made a 'HOLDS' comment above the function.