clang-wrapper: Sync with gcc-wrapper
sudo: Update to 1.8.9p4
clang-wrapper: Set $CXX to clang

This is useful for non-Autoconf-based packages, since GNU Make's
default for CXX is "g++".  (The CC default is "cc" so should work fine
with Clang already.)
serf: fix evaluation on FreeBSD (required for Subversion)
ati-drivers: update to 13.12 (close #1569)

This update is mostly effort from @MarcWeber and @vcunat, now tested on real
hardware making sure it works with multiple GPUs and opencl.
findbugs: Clean up packaging

Most stuff is now hidden under $out/libexec/findbugs, with only a few
JARs exported via $out/share/java.  Also, the setup hook sets
FINDBUGS_HOME.
titaniumsdk: Add additional login simulation for the ipa target
titaniumsdk: colored output makes a web server think that logs are in raw format. So disable it
youtubeDL: update from 2014.01.08 to 2014.01.20
clamav: update from 0.98 to 0.98.1
wineUnstable: update from 1.7.10 to 1.7.11
wget: update from 1.14 to 1.15
webkitgtk: update to 2.2.4, enable html5 video support
midori: minor update 0.5.6 -> .7
remove .topmsg (close #1578)
haskell-either: disable the documentation build on GHC 7.4.x or earlier