Clean up test classes
add linkapps completion
drop unnecessary nil checks
mercurial 2.9.2

Updated to Mercurial 2.9.2

Closes #28204.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
setuptools 3.4.1

Closes #28195.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
python: update 2.7.6 bottle.
juju 1.18.0.
juju: update 1.18.0 bottle.

Closes #28182.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Initialize cxxstdlib set lazily

This is used rarely and only at build-time, so we don't need to create
it when instantiating the formula.
sqlite 3.8.4.3
sqlite: update 3.8.4.3 bottle.
aria2 1.18.5
aria2: update 1.18.5 bottle.
sqsh: use Formula[]
nzbget: use resources
cairo: switch to recommended dep

I'm tired of looking at this issue, and I doubt too many people are
using "without-x" anyway. Sorry!

Fixes #25175.
youtube-dl 2014.04.04.7

Updated youtube-dl to 2014.04.04.7

Pointed brew at 2014.04.04.7 build.

Closes #28215.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
arangodb 2.0.2
arangodb: add 2.0.2 bottle.

Closes #28220.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
arangodb: remove excessive caveats.