Merge pull request #1 from CopernicaMarketingSoftware/master

Merge PHP-CPP
Merge pull request #2 from CopernicaMarketingSoftware/master

Merge PHP-CPP
Merge pull request #3 from CopernicaMarketingSoftware/master

extra check for existance of classname #77
Merge pull request #4 from CopernicaMarketingSoftware/master

Merge PHP-CPP
Merge pull request #5 from CopernicaMarketingSoftware/master

Merge
Merge pull request #6 from CopernicaMarketingSoftware/master

Merge PHP-CPP
added documentation about php.ini variables, and fixed typo in exception documentation
small fix to php.ini documentation
Fix relative url in ten-reasons-for-using-php-cpp
Merge pull request #89 from wapmorgan/fix_doc

Fix docs

Thanks for contributing.
Value objects constructed with (const char *)NULL caused a crash, this has been fixed so they hold a PHP NULL value
When "apache reload" is called, the PHP-CPP library made the entire Apache process crash. This has been fixed
Merge branch 'master' of https://github.com/CopernicaMarketingSoftware/PHP-CPP
update documentation about extension callbacks
tiny changes in documentation about extension callbacks
Merge remote-tracking branch 'remote/master'
Comparison operators for hardcoded Value
when an object was created using Php::Object("MyClass", new MyClass()), the object handlers were not installed, which caused the magic methods not to be functional (issue #94)
issue #93: fix crash when moving to null Php::Value object
Corrected in accordance with Proposition https://github.com/CopernicaMarketingSoftware/PHP-CPP/pull/95#issuecomment-45716890