Merge branch 'allow-imports-in-submodules' into upstream-master

This allows submodules to use the full power of the module system.

Signed-off-by: Shea Levy <shea@shealevy.com>
mesa_noglu: make it meaningful even on darwin

In future we should change the mess, e.g. have libGL, libGLU and similar
attributes.
add tarman-0.1
Merge pull request #637 from the-kenny/fix-dropbox-cli

Fix dropbox cli
Merge pull request #635 from lovek323/ruby

ruby19: fix on darwin
fix evaluation on non-Linux, should fix tarball
Merge branch 'master' into x-updates
flightgear: Remove from channel

It's 264 MiB compressed...
nix: Update to 1.5.3
Merge pull request #619 from lovek323/sdcv

sdcv: add expression
pygit: add DYLD_LIBRARY_PATH to compile on darwin
ruby-1.9: disable tk when compiling on darwin
tree: fix compilation on darwin
Merge pull request #642 from lovek323/tree

tree: fix compilation on darwin
Merge pull request #641 from lovek323/ruby19

ruby-1.9: disable tk when compiling on darwin
Merge pull request #633 from lovek323/httpd

apacheHttpd: fix build on darwin
Merge pull request #640 from lovek323/pygit

pygit: add DYLD_LIBRARY_PATH to compile on darwin
glib: fix on darwin (merge #644)

* include Foundation.h header
* add myself to maintainers
* build with gccApple

@vcunat: minor refactoring.
Adding pandas - Python data analsysis library
harfbuzz needs libintl on non glibc platforms