Added search method to main class and to file driver
Added PHPUnit tests for search method
Throw exception if search method not supported by driver.
Added a few more tests for search method
Added the autoload property for the mapping of the class.
Added two methods to access cache in array style
Cache methods reworked: _set(), _delete()
_get(), _set(), _delete() methods updated.
Merge pull request #54 from CheerfulYeti/get_set_feature

Added two methods to access cache in array style
Merge pull request #48 from dharmavagabond/composer

Added the autoload property for the mapping of the class.
Merge pull request #46 from laurent22/Stable-Version-1.x

Added search method to main class and to file driver
Merge pull request #3 from khoaofgod/Stable-Version-1.x

update