Use isVariable() method for Variable
Variable setDynamicTypes we pass [0 => 'array'], not ['array' => true]
Fix typo
Variable fix setDynamicTypes() method

- array type
Variable add : isArray(), isNotVariableAndArray()
Ref to Variable shorcuts
Return a clean copy of a value instead of the reference itself to avoid unexpected behaviors
Fetch property directly in update_static_array
Added build in development mode, added ob_start optimizer
Cast to string or array variables move variables to the stack
Avoiding possible dereference for globals
Zval could be deallocated without being initialized
Safe temp parameter copy
Run tests in release mode
Merge pull request #576 from ovr/typos

Typos, Fixes
Adding is_php_version optimizer
Merge branch 'master' of http://github.com/phalcon/zephir
Fixing warning in logger, fixing declaration of variables with initial defaults
Fixing #579
Initial implementation of safe div operator