* kill devel/libtool and move to devel/libtool13, upgrading to 1.3.5
* upgrade repo-copied devel/libtool14 to 1.4.3
* break out libltdl into its own separate port
* move to version-numbered binaries/scripts (ie: there is *no* 'libtool'
any more -- USE_LIBTOOL and USE_LIBTOOL_VER are your friends)
Approved by: portmgr (kris) - for the bsd.port.mk hooks
Tested by: bento 4-exp builds (repeatedly)
Set GNU_CONFIGURE since this port uses it
Don't use an internal libtool, use the system one. Port build is still
broken on -current because of expr(1) abuse in the libtool port.
hanemacs and hmconv had invalid version strings (fixed).
I also got replaced AMI_VER and HANIM_VER with PORTVERSION but I
didn't touch BROWSER_VER (in netscape ports) since it was used in too
many places.
