Temporarily remove link in README.md to Windows installer (until PATH is fixed)

Right now, some users are finding that the 0.6.22 Windows installer overwrites their PATH variable.  We will link back up to the installer when we are sure that it is fixed.
Remove unnecessary calls to cmd.exe in vwf.bat
Merge pull request #161 from virtual-world-framework/branch/vwf-script-windows

Remove unnecessary calls to cmd.exe in vwf.bat
Improve README.
Merge pull request #157 from virtual-world-framework/branch/remove-installer-from-readme

Temporarily remove link in README.md to Windows installer (until PATH is...
Update to three.js r66
Merge pull request #163 from virtual-world-framework/branch/three.js-r66

Update to three.js r66
Added ShadowBias property.
Added HemisphereLight type.
Merge pull request #165 from virtual-world-framework/branch/threejs-r65-lights

branch/threejs-r65-lights
Removed the default application border.
Merge pull request #166 from virtual-world-framework/branch/remove-border

branch/remove-border
Allow app developer to disable creation of default nav object

They need only set the scene's userObject property to null
Merge pull request #168 from virtual-world-framework/branch/control-over-default-user-object

Allow app developer to disable creation of default nav object
Set visible property recursively
Elevate setMeshPropertyRecursively so it can be referenced in model and view
Add TODO comment to view/threejs.js to use setMeshPropertyRecursively
Merge pull request #169 from virtual-world-framework/branch/set-visible-recursively

Branch/set visible recursively
Enable view interpolation on navObject and camera when navigation mode is "none"
Merge pull request #170 from virtual-world-framework/branch/smooth-camera-when-not-user-controlled

Enable view interpolation on navObject and camera when navigation mode is "none"
Adds a blackly application