Function: Shows message if the plugin can’t load due to TEC not being available.
Function: Requires the autoloader class from the main plugin class and sets up autoloading.
Filter Hook: Instantiate class and set up WordPress actions on Common Loaded
Function: Include the plugin name into the correct place
Function: Attempt to Register Plugin
Function: Setup css classes for daily columns in week view.
Function: Retrieve the current date in Y-m-d format.
Function: Return html attributes required for proper week view js functionality.