Use curl to download list of Apache mirrors

Ruby's OpenURI library is somewhat broken under 1.8 and chokes on
otherwise valid values of http(s)_proxy. Use curl to get the mirror list
instead.

Fixes #23708.
unrar 5.0.12

Closes #23781.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
mdbtools 0.7.1

Closes #23368.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
gradle 1.9-rc2

Closes #23776.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
ArangoDB 1.4.0

Closes #23770.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
google-perftools: add missing #include

Fixes #23601.
Closes #23752.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
google-perftools: add note about patch
lcdf-typetools: bugfix patch for Xcode 5 / 10.9

Closes #23740.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Resource: push conditional down into #verify_download_integrity
Resource: extract unpacking from #stage

Closes #23768.
go: don't patch HEAD installs

The patch was inserting an extra case statement, but a duplicate case
statement is already included in HEAD (and devel).

Closes #23787.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>