Updated Xdebug to 2.1.1
Updated Xdebug to 2.1.1

Signed-off-by: Adam Vandenberg <34c2b6407fd5a10249a15d699d40f9ed1782e98c@gmail.com>

ablyler/homebrew-php,TomK/homebrew-php,dguyon/homebrew-php,philcook/homebrew-php,mkalkbrenner/homebrew-php