Make ENV.O4 a no-op

On older Apple compilers "-O4" is known to cause build errors. On recent
clang, it's the same as "-O3" and you have to pass "-O3 -flto" to get
the old behavior.
ENV.{cc,cxx} setters already set OBJC and OBJCXX
We don't use -Qunused-arguments anymore
pebble-sdk: remove obsoleted setup.py/clang workaround
Remove comment that no longer reflects adjacent code
Use MacOS.locate and delete wrong comment
ENV/shared: use homebrew/versions GCC if installed

Closes #28820.
Remove test that doesn't add value
brew-unpack: Handle new style :DATA patches

Instances of `IOPatch` created by `patch :DATA` are not affected by re-setting
the `DATA` constant of the `Formula` instance. For these patches, we iterate
through the `patchlist` and use `instance_variable_set` to attach data.

A bit hacky, but `patchlist` has no write accessors so there isn't a clean way
to modify patch contents.
tomee-jax-rs 1.6.0.1

The Apache TomEE project released the 1.6.0.1 version
of the TomEE web server stack.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
tomee-plus 1.6.0.1

The Apache TomEE project released the 1.6.0.1 version
of the TomEE web server stack.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
tomee-webprofile 1.6.0.1

The Apache TomEE project released the 1.6.0.1 version
of the TomEE web server stack.

Closes #28838.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
unpack: use correct constant scope for DATA

Formula::DATA only worked by accident of implementation; DATA during the
build is actually Object::DATA, so we should mirror that here.

This reverts commit b12444ba6e1ac1d596a70ff4c777d9386d0791ac.
unrar 5.1.4

Closes #28839.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
gradle 1.12

Closes #28823.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
gitbucket 1.13

Closes #28824.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
ddclient: update homepage

Closes #28831.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
at-spi2-atk 2.12.1
at-spi2-atk: update 2.12.1 bottle.
clutter: fix homepage URL

Closes #28832.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>