remove some files, simplified header code
trim down functions in header_hook.php
finish recode header part
trim down some code in footer_hook
merge with the latest develop
just do some clean up
trim down menu, modules, and libraries
moving around files for better structure
removing unneccessary space and standardize code
cleaning up some code comments and delete unused file
update all widgets, now it is not load using autoload
clean up codes
shortcode autoload is removed from loader, it will automatically loaded from shortcodes folder
structurize core class, updates class prefix, and change the way calibrefx class loaded
remove logger and config class
autoload helpers
delete the use of model, instead use the general calibrefx model with group key
fix export functions
clean up codes
move loads_Xxx to calibrefx loader class