Glossary changes 

Made a few changes:
i) GlossaryEditView: added functionality to add alternate titles
                                added confirmation box on clicking save if the text in the ckeditor is empty
                                added styling to the title textfield
ii) GlossaryListView: the list also shows all alternate titles along with the main title
iii) All alternate glossary titles have the same pop-up in all nuggets as the pop of their main glossary title.
iv) Created glossary tags for all anatomy nuggets.