Adding failing test case for #76 - internal php classes with default params cannot be proxied
PDO is required to test #76 - internal php classes proxying
Applying hotfix for #76 - allowing proxying of internal methods with default params
Fixing tests to use PHAR instead of PDO (since PDO is too complex)
Requiring PHAR instead of PDO for tests
Unit test for #76 - default parameters for internal PHP classes
Merge pull request #153 from Ocramius/hotfix/issue-#76-internal-php-classes-proxying

Internal php classes proxying when methods with default parameters occur