Added activity feed on main page,  basic concept implementation for RSS feeds
Added RSS feeds for activities, different feeds for new project objects, general comments feed, object related comment feeds
Added own page (url) for questions, new explanations, answer, answered fields, possibility to add documents, web sources, pages for question comments and RSS feeds
Beginning implementation of research requests
UI elements, feeds, form, url representation for research requests
Merge branch 'dev-0.4'