Function: Register hooks that are fired when the plugin is activated or deactivated.
Function: Callback function for auto loading class on demand.
Function: Insert table when addon is activated.
Function: Check if avatar exists already.
Function: Generate avatar.
Function: Delete images uploaded in post.
Function: Return or print new comment button.
Function: Get addon image.
Function: Check if addon has options.
Function: Tinymce translations.