Make php packages available in nix-env
haskell-AES: fix spelling of the corresponding attribute and directory name
haskell-SHA2: refer to AES library with its proper attribute
xmobar: set the proper home page url
Simplify php-packages.nix
Remove obsolete php-apc package
Use buildPecl for php-xcache
php-5.3: fix build with freetype-2.5 (by Gentoo patch)
Merge remote-tracking branch 'nixos/master' into feature/add-znc-module

Conflicts:
	nixos/modules/misc/ids.nix
Fixed settings issue.

The following warning was shown when I clicked on links:
'GLib-GIO-Message: Using the 'memory' GSettings backend. Your settings will not be saved or shared with other applications.'
nodePackages.couchapp: added & and node packages updated
haskell-cpphs: update to version 1.18.5
haskell-arbtt: update to version 0.8.1
haskell-sloane: update to version 1.8.2
haskell-Chart-cairo: update to version 1.2.3
haskell-Chart-diagrams: update to version 1.2.3
haskell-Chart-gtk: update to version 1.2.3
haskell-Chart: update to version 1.2.3
haskell-GLUtil: update to version 0.7.5
haskell-HFuse: update to version 0.2.4.2