denominator 1.2.1

Closes #20350.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Raise bottle exceptions for Homebrew developers.
Use new download strategy for local bottles.

Fixes installation of e.g. ScriptFileFormula/denominator bottles.
brew-test: add five minute timeout.
Bottle DSL: allow checksums access.
brew-test-bot: write bottle metadata files.
brew-bottle: split output and use a bottle object.
brew-bottle: merge arg for bottle metadata files.

Closes #20266.
MySQL: allow compilation with Xcode-only setups

Closes #20185.
Merge branch 'master' of git://github.com/mxcl/homebrew