Added method for checking if a specific event has any listeners bound.
Added new PastePreProcess/PastePostProcess events and reintroduced paste_preprocess/paste_postprocess paste options.
Fixed issue with the tabpanel not expanding properly when the tabs where wider than the body of the panel.
Added new importcss_selector_filter option to importcss plugin. Makes it easier to select specific classes to import.
Added new importcss_groups option to importcss plugin. Enables you separate classes into menu groups based on filters.
Fixed bug where linebreaks would be removed by paste plugin on IE since it didn't properly detect Word contents.