Merge pull request #1 from cythoplazma/master

Merge request.
Started working on screenshots plugin, RSS feed retrieval.
Update README.rst
Added gitignore.
Merge branch 'master' of github.com:biolab/orange-web
Updated settings.
Added subpages.
Resolved conflicts. Merged.
Homepage.html, screenshots.html updated. .content functionality needs to be ported to .screenshot-container.