Merge pull request #19 from joelmoniz/master

Added work done on Contributions Manager
Update index.md
Update index.md
fixing oculus image
Update index.md
Add ofSketch GSoC project post
Remove comma
add TweakMode
Merge pull request #20 from brannondorsey/master

ofSketch GSoC Blog Post
Merge pull request #21 from galsasson/patch-1

add TweakMode