bump some versions in preparation of 2012.12 release
new download URLs are rakudo.org/downloads
2012.12 star release announcement
bump module versions
[announce] fix some numbers
add 2012.12 release to release-guide.pod
Merge pull request #17 from hoelzro/master

Make building RPMS and other Linux packages easier
bump versions in preparation of the 2013.01 release
update modules to newest versions
bump more versions (README, Makefile.in)
Add a 2013.01 release announcement.
note 2013.01 release in release-build.pod

also close a quote