#18 Fixed handling of escape and enter keys;
#18 Error class is applied only for not-new items
#18 Restoring old picture, when canceling author editing;
#18 Editable grid javascript view model: some virtual methods changed to not-overridable
#18 Created options table in blogs module, save and get commands for default template id, option controller
#18 Created view for selecting default blog template + server side modifications
#18 Fixed getting of templates, when no template is selected
#18 When creating a blog post, using a default template
#18 When creating a blog post, generating an url by title;
#18 Refactored image inserting: added ability to insert image from context menu to blog post or author;