added a develper
added model files of side_table and color box
Merge pull request #7 from irvs/issue5

Issue5
modify demo program
Merge pull request #9 from irvs/issue8

modify demo program
fix arguments
Merge pull request #10 from irvs/issue8

fix arguments
modified the wagon 3D model
added 3D models of shelf with door
Merge pull request #12 from irvs/issue5

Issue5
Merge pull request #13 from irvs/master

Master
Merge branch 'develop'