Merge pull request #97 from kubamarkiewicz/master

add setDefaultZ() method to all objects
Merge pull request #23 from ChinosInternationalCC/master

merge updates from chino repo
draft implementation of moving the object with the mouse
Merge pull request #98 from ovicin/master

draft implementation of moving the object with the mouse
Merge pull request #20 from ChinosInternationalCC/master

update