Add blog post about GSoC at Sprint
SwC blog (GSoC projects sprint) += Pitt project info

I added a couple of paragraphs about Peer instruction
web tool, what kind of help is needed, requirements for
volunteers and project lead location info.
Merge pull request #4 from pbanaszkiewicz/gsoc-pitt

GSoC projects during sprint += Pitt project info
Add Browsercast information ...

... for sprint and fix small things.

Browsercast information was copied from
https://gist.github.com/ReDEnergy/59d68e55e2846fcc4403
Merge pull request #542 from r-gaia-cs/gsoc

Add blog post about GSoC at Sprint