doctor: Xcode 6.1 is in the App Store

Closes #33397.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
sword 1.7.3 (new formula)

Sword is a mature programming library for working with biblical and related
tests that is used by different bible readers such as Xiphos and BibleTime.
This commit adds a first version of a formula for sword to homebrew.
sword 1.7.3 (new formula)

Applied QA suggestions of initial PR.
Uses system curl instead of a dependency, added more documentation,
corrected formatting, removed unneeded make flag.
sword: add 1.7.3 bottle.