Convert to USES=libtool and add INSTALL_TARGET=install-strip

Obtained from:	gnome-dev
Remove non staged ports without pending PR from ma*
ng-canna has been resurrected
Add the current SUSv4/Open Group Base Specifications Issue 7.
Update URLs, and fix a typo, in SUSv2/SUSv3 pkg-descr
Remove non staged ports without pending PR from m*
Fix pkg-plist

Reported by:	antoine
- Upgrade to 1.5;

- Bump PORTREVISION for consumers.
Fix build on local systems when ffmpeg-2.3.3 is installed. This removes the
need for files/extra-patch-manual-amd64

PR:		193187
Submitted by:	Jan Beich
Remove non staged ports without pending PR from net-im and net-mgmt