Changed information bar position.
fix getRewardCubePositition bug for new object
Merge branch 'yiweili' of https://github.com/yutongp/RaiseMeUp into ypei
Added swipe
Merge branch 'lucas' of https://github.com/yutongp/RaiseMeUp into ypei
Merge branch 'xinbweng' of https://github.com/yutongp/RaiseMeUp into ypei
fix port 80
fig merge bug and typo in render()
world offset considered
delete swipe
Merge branch 'yifei' of https://github.com/yutongp/RaiseMeUp into ypei

Conflicts:
	server/rpc/demo.js
merged with ypei
Updated worldIndex and added function setWorldMap()
small change
Merge branch 'xinbweng' of https://github.com/yutongp/RaiseMeUp into ypei
Unabled adding a box to an occupied cell
Unenabled adding voxel when blockLeft <=0
return bug of can go directions fixed
Merge branch 'yifei' of https://github.com/yutongp/RaiseMeUp into ypei
Merge branch 'xinbweng' of https://github.com/yutongp/RaiseMeUp into ypei