nginx 1.5.3

Closes #21580.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
cmu-sphinxbase: superenv filters out unwanted flags

add standard python caveats
PyPy 2.1

Closes #21587.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
ios-sim 1.8.2

Closes #21563.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
coccinelle 1.0.0-rc17

Closes #21566.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
libmatio 1.5.2

Closes #21592.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
elf: add switch

Closes #16560
fix typo

Closes #21601.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
ArchRequirement: support :intel, :ppc
Document superenv HOMEBREW_CCFG flags
Improve signal-to-noise ratio of `brew list --unbrewed`

Closes #21573.
Enable timeout to switch mirror download