laptop-mode: update to 1.66.
cups: update to 2.0.1.
gtk-sharp: update to 2.99.3; take maintainership due to inactivity.
gtk-sharp: unbreak with the official tarball.
libgdiplus: update to 3.8.
mono: update to 3.10.0.
fuse-usmb: fix update-check
gnu-efi-libs: fix update-check
gnuplot: update to 4.6.6; fix cross; take maint.
runit-void: bump (modules-load fixed in arm).
chroot-grep: update to 2.21.
update_check.sh: bitbucket.org support
eigen2: use bitbucket update-check support
update_check.sh: support for update_version (upstream version).
btrfs-progs: fix update-check.
ruby: remove references to the cross compiler from rbconfig.rb.

Fixes building gems natively on ARM.
Merge pull request #660 from onekk/master

lensfun: updated to 0.3.0
lensfun: repair !x86 builds.
yabause-gtk: update to 0.9.14.
v4l-utils: update to 1.6.2.