scala: Bump up version from 2.11.2 to 2.11.4
camlimages: update from 4.0.1 to 4.1.2

Previous version 4.0.1 is kept for OCaml 3.12
Merge pull request #4758 from vbgl/camlimages

camlimages: update from 4.0.1 to 4.1.2
mongodb: 2.6.4 -> 2.6.5
calibre: update from 2.7.0 to 2.8.0
Merge pull request #4753 from taku0/scala_2_11_4

scala: Bump up version from 2.11.2 to 2.11.4
R: update to version R-3.1.2
nix-prefetch-git: whitespace cleanup

Use 4 spaces per indent level instead of a mix of 2 spaces, 4 spaces and
hardtab. (According to nixpkgs coding style for shell scripts.)
youtube-dl: update from 2014.10.25 to 2014.10.30
nasm: update from 2.11.05 to 2.11.06
libgit2: update from 0.21.1 to 0.21.2
pwgen: update from 2.06 to 2.07
libmicrohttpd: update from 0.9.37 to 0.9.38
nix-prefetch-git: remove unneeded semicolons

Shell isn't Perl ;-)
cran-packages: update all packages to their respecitve latest version
haskell: update imm to 0.6.0.3
Merge pull request #4764 from bergey/imm

haskell: update imm to 0.6.0.3
grsecurity: Update stable and test patches

stable: 3.0-3.14.22-201410250026 -> 3.0-3.14.23-201410312212
test:   3.0-3.17.1-201410281754  -> 3.0-3.17.2-201410312213
haskell-cabal2nix: update to version 1.71
Added Igor Pashev <pashev.igor@gmail.com>