git-modes: add git-modes package version 0.15.0-8-g4e10851 for Emacs

These files are required by the latest version of Magit.
magit: update to the latest release from Melpa
haskell-vty: update to version 5.2.4 (and remove obsolete version 4.x)

This change breaks vty-ui, which appears to be unmaintained by upstream.

https://github.com/jtdaugherty/vty-ui/issues/55
haskell-HTF: update to version 0.12.2.2
haskell-dynamic-cabal: update to version 0.3.3
haskell-extra: update to version 0.3.2
haskell-fast-logger: update to version 2.2.3
haskell-focus: update to version 0.1.3
haskell-mysql: update to version 0.1.1.7
haskell-network-simple: update to version 0.4.0.2
ihaskell-wrapper: inherit the meta section from ihaskell
quilt: set meta.platforms
magit: don't install lisp files into a "magit" sub-directory

After this change, Emacs can load the magit-*.el files without further
configuration. Just add

    (require 'magit-autoloads)

to ~/.emacs, and run M-x magit-status or any other magit command.
squashfs: 4.3 -> 4.4, hopefully fixes http://hydra.nixos.org/build/16422733
scala: Revert "update from 2.11.1 to 2.11.3".

This reverts commit 4507aeb20015979d85e4df2610c8d00969173e2c.
Scala 2.11.3 is broken:

  https://groups.google.com/forum/#!msg/scala-internals/SSD9BNJaFbU/rACBkHrs2JEJ.
squashfs: -lgcc_s
chromium: update dev, beta, stable channels
zabbix.server: update from 1.8.20 to 1.8.21
next release will be 14.11