Changes

Misc:
- correct naming of the standard in "VRML97" instead of "VRML 2.0"
- cleaning up the script of to much comments and developer infos
- fixed various rounding bugs 
- on export dialog correct hanging on of extension for the file (.wrl);
	if python is installed asking about overwriting existing files is available

Mesh (IndexedFaceSet, IndexedLineSet)
- added support for real creaseAngle using Blender Modes Set Solid and Set Smooth (using Auto Smooth degrees)
- added writing of transform nodes with position (translation)
- added twosided option for objects has material only

Camera (Viewpoints)
- exporting of lens properties as fieldOfView (using aspect ratio given through render image size)

Lights
- tweaking and fine adjustment of lights; added support for real ambientIntensity 
- color of lights now supported

Materials
- TextureTransform (scale) is supported using tiling X and Y of UV Image Editor
	http://accad.osu.edu/~pgerstma/class/vnv/resources/info/AnnotatedVrmlRef/ch3-349.htm
- better emissive color support using material emit and ambient color of
	Blenders world object
- optional export of material settings only and ignoring vertec color or face color
- Better support for face and vertex colors
	
NavigationInfo
- will now always exported; using ClipEnd of the first camera as visibilityLimit; if lights placed in the scene Headlight will be off

New supported VRML nodes
- Fog: support for exporting VRML node Fog using setting of Blenders world object and mist properties for Lin (for LINEAR) and SQR (for EXPONENTIAL); panel Mist/Stars/Physics
	http://accad.osu.edu/~pgerstma/class/vnv/resources/info/AnnotatedVrmlRef/ch3-319.htm
- Background: support for exporting textures, colors and blending modes for Background node using Blenders world object (panel world and preview)
	http://accad.osu.edu/~pgerstma/class/vnv/resources/info/AnnotatedVrmlRef/ch3-305.htm
- Inline: now Blender can be used creating parent scene and inlines; the first scene is the parent scene all others linked does not have standard names
	linked to it as inlines; Note: when exporting only the current scene will be exported, not all ones
	http://accad.osu.edu/~pgerstma/class/vnv/resources/info/AnnotatedVrmlRef/ch3-325.htm
- Support for adding any VRML node and script using text editor and naming the text file "vrml"; after we got a full funtional text editor (thanks Themyers)
	any content of a text file named "vrml" will be included at the end of the file; this turns Blender in a fully VRML editor
- support for placing nodes into space using empties and naming them (OB:) as valid VRML nodes
- Billboard: using Blenders face modes for meshes set to Halo (billboard is screen aligned) or Billboard (billboard about Z-axis)
	http://accad.osu.edu/~pgerstma/class/vnv/resources/info/AnnotatedVrmlRef/ch3-306.htm
- Collision: using Blenders face modes for meshes unset Collision grouping node Collision FALSE will be exported into VRML
	http://accad.osu.edu/~pgerstma/class/vnv/resources/info/AnnotatedVrmlRef/ch3-308.htm