[PATCH INCLUDED] Binary STLs entitled 'solid ...' trigger ascii STL loader

```
1. get Build_plate.stl from http://www.thingiverse.com/thing:12890
2. feed to jsc3d

due to my naive test, jsc3d thinks this is an ascii STL when really it's a
binary STL entitled 'solid Build Plate'

--- jsc3d.js 2011-10-28 14:39:03.277821883 +1100
+++ ../../webskein/jsc3d.js 2011-10-28 14:52:34.491680315 +1100
@@ -4170,8 +4170,8 @@
mesh.vertexBuffer = [];
mesh.indexBuffer = [];
mesh.faceNormalBuffer = [];

- if (data.substring(0, 5).toLowerCase() == 'solid') {
+ if (data.match(/^solid[\s\S]*facet\s*normal/i)) {
/*
we have an ASCII STL file.

perhaps it would be better to run the full face pattern against it rather than
this small snippet? Otherwise we'll still have this bug with binary STLs
entitled 'solid .... facet normal'.
```

Original issue reported on code.google.com by `triffid....@gmail.com` on 28 Oct 2011 at 4:02