Update to libtool-1.2b, change library versioning scheme to drop

Update to libtool-1.2b, change library versioning scheme to drop

Tue Sep 15 14:57:30 1998  Owen Taylor  <otaylor@redhat.com>

	* Makefile.am gtk-config.in l*: Update to libtool-1.2b,
	change library versioning scheme to drop LT_RELEASE
	from the -l line, while keeping it in the soname.

Tue Sep 15 14:10:33 1998  Owen Taylor  <otaylor@redhat.com>

	* configure.in Makefile.in: define a MAINT-like variable REBUILD
	which is set if Perl and awk are found, and autogenerated sources
	can be rebuilt. Remove the auto-generated sources from
	CVS.

	Add dependencies so that the autogenerated sources are
	rebuilt if the files they depend on change.
	(This unfortunately currently results in the entire
	gtk/ directory being rebuilt when any header changes.
	Moving all enums to gtkenums.h would fix this.)