Merge pull request #4517 from FlorentBecker/eliom

ocsigen 2014-10
Improve escaping (process backtick) and remove trailing spaces
crawl: fix, update, add console version
add elm-reactor to the package list
Disable parallel building of Guile for now
Merge pull request #4827 from krgn/add-elm-reactor

add elm-reactor to the package list
Fix GeeQie build
Fix Boost 1.55 build
Remove dead code
Set MACOSX_DEPLOYMENT_TARGET to 10.9

This makes stuff build with Xcode 6.1 on Mac OS X 10.9 (where we got
errors like "ld: file not found:
/usr/lib/system/libsystem_coreservices.dylib for architecture x86_64" due to the use of the 10.10 SDK).
Fix tests.runInMachine evaluation
ioquake3: Remove meta.broken

It actually builds fine.
thunderbird-bin: update script to uses sha1 from mozilla
Merge remote-tracking branch 'origin/darwin-clang-stdenv' into staging

Conflicts:
	pkgs/applications/editors/vim/macvim.nix
Merge pull request #4829 from taku0/thunderbird-bin-31.2.0

thunderbird-bin: update script to uses sha1 from mozilla
thunderbird: update to 31.2.0, including security

Some "critical security fixes" are claimed:
https://www.mozilla.org/security/known-vulnerabilities/thunderbird/#thunderbird31.2.0
systemd: Update to 217
aspell: Add Slovak dictionary.
Set SDKROOT etc. in stdenvNative

Fixes a build failure in gawk with Xcode 6.1 on 10.9.
Merge pull request #4830 from vlstill/aspell-sk

aspell: Add Slovak dictionary.