some minor Core pruning

[Michael J. Knox]

Bill Nottingham wrote:
> # repoquery --whatrequires --alldeps autoconf213 automake14 automake15 --archlist i686,i386,noarch,src --repoid development --repoid development-source
> metacity-0:2.15.5-5.src

Fixed. Replaced BR on automake14 with automake, also added gettext to BR 
to building min mock enviro.

http://www.knox.net.nz/~michael/metacity-2.15.5-6.src.rpm

Michael