forced popover editor to use always the data-title attribute as title
fixed to accept all catalouges
fetched the translator from the container and assigned to a protected variable
added caption label to save button for translation
added translation
refactored button_widget adding the cms_language for translations
updated unit test
updated base test to fetch the translator
updated composer.json
fixed red_kite_cms.active_theme sevice getting
updated to let child classes override the translation domain
added upload icon to base bootstrap themes
removed debug code
hidden contents were not correctly restored when the editor was stopped. fixed
added hideElementContent method to make appliable the hide content method to an element; hid the edited block when required
updated CHANGELOG
restored composer for RC releases due to previous merge