Added public_info property to StudentProject model.
Added public_info property to StudentProject model.

This can be used to further elaborate about your project on it's public page.

Also fixed some style and textual issues.

Patch by: Lennard de Rijk
Reviewed by: to-be-reviewed

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extra : convert_revision : svn%3A32761e7d-7263-4528-b7be-7235b26367ec/trunk%402866

rhyolight/nupic.son,rhyolight/nupic.son,rhyolight/nupic.son