main/libmpeg2: fix arm relocations

arm-private-symbols from da internet, arm-textrel is by me, very
untested and can break everything.
main/wavpack: fix arm build
testing/perl-rt-authen-externalauth: move to main
testing/perl-ldap: move to main
main/gcc: revert gentoo's addition of -fstack-check

I disagree, we don't want it as default.
main/gcc: fix patch path
main/openssl: speed improvements for c_rehash.sh
testing/arch-install-scripts: new aport
testing/yum-metadata-parser: new aport
main/coreutils: upgrade to 8.22
main/cryptsetup: upgrade to 1.6.3
main/gdb: upgrade to 7.6.2
main/gnutls: upgrade to 3.2.8
main/imagemagick: upgrade to 6.8.7.10
main/lftp: upgrade to 4.4.14
main/libisofs: upgrade to 1.3.4
main/libva-intel-driver: upgrade to 1.2.2
main/xcb-proto: upgrade to 1.10
main/libxcb: upgrade to 1.10
main/zsh: upgrade to 5.0.4