Disable samba-6-i386 build.
Update to samba-4.0.5, disable some incompatible samba-4.0.3 patches.
Remove more upstream merged samba-4.0.3 compilation patches.
Update samba.spec.fc20 to latest rawhide.
Teach samba.spec.miguesl to do README files the same as nkadel, for comparisons
Updte to 4.0.5, updte tevent_verison requirement to 0.9.18, discard 4.0.3 compilation patches.
Discard samba_upgradeprovision, which is not installed by default, and activate with_dc by default.