1) adding hosted.html to security white-list; 2) dev mode listening on 0.0.0.0; 3) fixing the dev mode by commenting out the RequestForAddingDev module. Unfortunately, the safari user agent had to be added to the MEditorDev gwt module. If not added, the dev mode is failing with an exception (similar to this issue http://code.google.com/p/google-web-toolkit/issues/detail?id=7233 except it is happening even in FF20), clearing cache or mvn clean was not helping.
Changing "dig." -> "digital" in the name of editor-creation module.