Updated minimum-stability property in composer confi.
Removed "type": "metapackage" in composer conf.
Merge upstream
Removed unused files.
Fixed test cases path issue.
Fixed File Cache test cases.
Fixed test cases of Theme class
Fixed test cases of File class.
Fixed path issues in Logger class and updated its test cases. Minor update of Memcached test cases.
Fixed test cases of Erdiko class.
Added support of cache.json to Memcached class.
Added logging to 500 & 404 errors.
Moved 400, 500 Logging function to appstrap.php.
Updated Container, Controller, and Layout Classes. It now support module’s view & layout.
Merge pull request #6 from colemantung/master

Added support to Shopify module.