PHP_CompatInfo : The Definitive Guide

Added a command line interface: with new class PHP_CompatInfo_Cli

Added a clone function: to PHP_CompatInfo::parseFolder() named PHP_CompatInfo::parseDir(). parseFolder() became now an alias of parseDir().

Added new option file_ext for parseArray: This option contains an array of file extensions to parse for PHP code. Default: php, php4, inc, phtml

Fixed integration with PEAR_PackageFileManager: PackageFileManager::detectDependencies() implement call to PHP_CompatInfo and allow to detect easily minimum PHP version needed.