Xcode 4.6.1 is released

Closes #18481.
V8 3.17.10

Closes #18484.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Clojure 1.5.1

Closes #18492.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
ragel 6.8

Closes #18489.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
ArangoDB 1.2.1

Closes #18494.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
sonar: use sha1 instead of md5

Closes #18496.
MPICH 3.0.2

MPICH2 recently renamed itself to MPICH and bumped the version number
from 1.5 to 3.0.  Even more recently, it switched from SVN to git for
version control.

The sbin hack is no longer needed, since MPE was removed between
MPICH2-1.5 and MPICH-3.0.

Closes #17314.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Redis 2.6.11

Closes #18497.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
clamav 0.97.7

Closes #18500.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
hevea 2.04

tarball for 2.00 disappeared

Closes #18498.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
io: Update SHA

IO recieved a stealth update.

Closes #18508.

Signed-off-by: Charlie Sharpsteen <source@sharpsteen.net>
macvim: Update SHA

MacVim got a stealth update.

Fixes #18501.
Closes #18507.

Signed-off-by: Charlie Sharpsteen <source@sharpsteen.net>
RethinkDB 1.4.0

Closes #18509.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
git-flow-avh 1.5.1

Closes #18505.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
aws-sns-cli: update checksum
audit: Improve url audits.

* Add url check for GitHub home pages using http.
* Add url check for GitHub repo urls using http.
* Include url in error messages about url issues.

Closes #18372.
audit github downloads

We want the new-style "/archive/" downloads.
ack: use archive download
zsh-completions: use archive download
yeti: use archive download