deps: display requirements default_formulae.
uses: display requirements.

Closes #23758.
serf: add mavericks bottle.
subversion 1.8.4

Closes #23779.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
subversion 1.8.4 bottles.
global: add more tap regexes.
Formula: add tap? method.
exceptions: direct to correct tap on failure.

Closes #23757.
Add tap migrations file.
update: automatically tap migrated formulae.

When a formula is removed from core and installed let's tap it so users
can get updates without caring which tap we want to put things in.

This should allow us to migrate a lot of things to taps.

Closes #23760.
install: print osx-gcc-installer doctor warning.
doctor: strengthen osx-gcc-installer warning.

We hate it and we should tell people why.
Next step may be blocking it altogether.
bullet 2.82

Update to latest release of bullet (version 2.82).

Closes #23797.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
ansible: use resources.
mitmproxy: use resources.
subversion: use serf resource.

References #23779.
serf: remove formula, unused.
deps: don't use symbol-like output by default.
Cleanup use of some global constants.
jenkins 1.537.