rawtherapee: update to 4.2.
libpipeline: update to 1.4.0.
btrfs-progs: update to 3.17.
New package: linux3.18-3.18.0rc2.
ImageMagick: update to 6.8.9.9.
python-curl: add support for libressl from @JiCiT (close #574).
linux-firmware: update to today's code.
subversion-perl: fix parallel build

Without this patch, the build could race and the perl module wouldn't
link correctly.
subversion: nocross=yes.
subversion-perl: require perl>=5.20.
boost-jam: depends on boost-build, as suggested in by pancake (close #601).
New package: perl-Term-ReadKey-2.32
git: split svn functionality into the git-svn subpkg.
Merge branch 'master' of git://github.com/voidlinux/void-packages