Add a first implementation of a proof-of-concept chipmunk demo
Use 'go get' in cube/test_task.go
Refactoring of chipmunk demo
Improve chipmunk demo: many colored boxes and rendering optimizations
s/Line/Segment
Fix support for the new shapes API
Use go get in place of go install and use go-colorful package
Create a world from a string slice
Merge branch 'master' of https://github.com/remogatto/mandala-examples