Merge pull request #18 from arcticmill/master

Make query parameters work with graph.del() - wrong ternary evaluation
version bump
Update README.md

Fixed post authorization redirect path. Also added 'scope' string from config to the getOauthUrl call so the correct permissions are requested. 
Merge pull request #21 from etx/patch-1

Update README.md
Update README.md
Merge pull request #22 from kanakiyajay/patch-1

Update README.md