Lecture 6, task 1: added link to pull request.
Fixed merge conflicts.
Update 2014-09-30.md
Merge pull request #70 from SkyFire-/master

Added pull request
Merge pull request #66 from Oona/master

Lecture 6, task 1: added link to pull request.
Merge pull request #4 from paazmaya/master

Updating again