Use shared atlas in liblapack for hmatrix
luminanceHDR: add version 2.4.0

fixes #3229
Merge pull request #3547 from nilcons/hmatrixfix

Use shared atlas in liblapack for hmatrix
haskell-webkit: restrict meta.platforms to Linux; we cannot build that package on Darwin
haskell-vcsgui: restrict meta.platforms to Linux; we cannot build that package on Darwin
haskell-jack: restrict meta.platforms to Linux; we cannot build that package on Darwin
haskell-xmobar: restrict meta.platforms to Linux; we cannot build that package on Darwin
dconf: update to 0.20.0 due to gdm requiring dconf compile
vino: fix missing remote-desktop icon
ibus: do not run dconf update
gnome-shell: find icons inside gdm
gdm: Add very experimental display manager
Allow optional functionality in SimGrid
bluez: 5.16 -> 5.22
virtualenv: 1.11.4 -> 1.11.6
haskell-zip-archive: update to version 0.2.3.4
haskell-Chart-cairo: update to version 1.2.4
haskell-Chart-diagrams: update to version 1.2.4
haskell-Chart-gtk: update to version 1.2.4
haskell-Chart: update to version 1.2.4