Added texture mapping sample html.
Update three.js library r58
Added light.
Added lighting html page.
Added dat.gui control library.
Finished lighting example.
Changed background color to black.
Added materials.html.
Revised code.
Finished materials sample.
Changed background color to black.
Added model.html.
Rename model.html to animated-model.html.
Added boy model assets.
Finished animated model example.
Cleaned up codes.
Removed unused boy assets.
Added model.html for loading ufo model demo.
Added ufo assets.
Revised three.menu argument.
Initialized menu with demo pages.
Modified menu container and title.