Removed incorrect 'v' from Installation instructions version
Workaround for https://bugs.php.net/bug.php?id=52854
Merge pull request #14 from mertenvg/fix/php-reflection-bug

Workaround for https://bugs.php.net/bug.php?id=52854
Amended descriptor to use default values for constructor parameters when available
Amended default argument resolver to use isDefaultValueAvailable method
Merge pull request #15 from mertenvg/fix/skip-optional-params

Fix/skip optional params