Reusable split-off of pecl_http's property proxy API.

Current version

php54-propro requires the following formula to be installed:
autoconf 2.69 Automatic configure script builder

Recent formula history

Jan Viljanen php54-propro 1.0.2
Andreas Braun Add description for propro formula
Andy Blyler cleanup extension testing
Andy Blyler fix style issues
Andy Blyler Update URLs to use HTTPS

Formula code at GitHub