Fixed grammar errors.
Changed it to use include() instead of include_once().
- Renamed some methods.
- Added some new abilities to the log() (logArray()) method.
Made it use include() instead of include_once().
Made it use include() instead of include_once().
Updates Admin Page Framework.
- Reconstructed the file structure of admin page classes.
Added a method to retrieve stored option values.
- Fixed an issue that excessive API requests could be made in a single page load when multiple shortcodes or plugin PHP functions are used in the page.