Added a basic COLLADA .dae importer mainly to support URDF loading (URDF can refer to COLLADA .dae or STL .stl for mesh support)
It is fairly limited, only supports loading <geometry> with triangulated meshes, no material loading
I will extend this with COLLADA Physics support.
fix mac build
remove unnecessary header
add basic concept demo, Coordinate System for a start.
set the up axis for some of the demos.
Merge pull request #273 from erwincoumans/master

COLLADA .dae importer for URDF, Basic Coordinate System demo
fix build
Merge branch 'master' of https://github.com/erwincoumans/bullet3
Merge pull request #275 from erwincoumans/master

fix build
Enable CMake support for Windows Phone (_WIN32+_M_ARM) and Windows Store Apps,
Use this recent cmake version (http://cmakems.codeplex.com/) or future cmake that has the Windows Phone/Store App support
Use the following defines in CMake:
-DCMAKE_SYSTEM_NAME=WindowsPhone or -DCMAKE_SYSTEM_NAME=WindowsStore
-DCMAKE_SYSTEM_VERSION=8.0 or -DCMAKE_SYSTEM_VERSION=8.1
Thanks to Microsoft OSS group for the patch!
Update README.md
Update README.md
Update README.md
Merge pull request #278 from dbasilioesp/master

Stylized ReadMe
Merge pull request #276 from erwincoumans/master

Enable CMake support for Windows Phone (_WIN32+_M_ARM) and Windows Store...
add btFileUtils::toLower to convert a string (char*) to lower case
URDF import demo: add COLLADA .dae file support
add FiniteElementMethod demo, extracted from the OpenTissue library (under the zlib license)
don't crash if loading an invalid STL file
add comparison with Assimp for COLLADA file loading (disabled by default, to avoid library dependency)
Gwen: disable some flags that make the build incompatible
add btFileUtils::toLower to convert a string (char*) to lower case
URDF import demo: add COLLADA .dae file support
add FiniteElementMethod demo, extracted from the OpenTissue library (under the zlib license)
don't crash if loading an invalid STL file
add comparison with Assimp for COLLADA file loading (disabled by default, to avoid library dependency)
Gwen: disable some flags that make the build incompatible
fix Mac build
initialize variable to fix FEM nodes
add very basic multibody vehicle
tweak finite element experiment with parameter
render the tetrahedral mesh (no mesh normals)