Add stapler collision mesh into StaplingExample.
Replace the collision mesh of stapler with a simplified convex mesh
so that its inertia mass would be calculated properly.

and also adjust VTC's parameters for this new collision mesh.
Replace collision mesh of the stapler with correct version and tune VTS's paramenters.
Merge branch 'master' of git.assembla.com:OpenSurgSim into wip/collisionMesh-stapler

Conflicts:
	Examples/ExampleStapling/main.cpp
Move arm collision mesh from Collision folder into Geometry folder.
Remove duplicated header file.
Revert "Fix generating export targets file"

This reverts commit d784683e4131bf3cea28e798d4da4e884f510e55.

It was decided not export OpenSurgSim from the build directory. It will
only be exported when installed. As this is largely not used by other
projects and not well supported.

refs #38
Merge branch 'master' of git.assembla.com:OpenSurgSim into wip/collisionMesh-stapler

Conflicts:
	Examples/ExampleStapling/main.cpp
Add correct collision meshes for the arm and stapler that has been
rotated to align with its scenery ones.
Set initial poses for scenery and physics representations of the stapler.
Adds unit tests for PhysicsManagerState.
Add Math::SurfaceMeshShape for rigid body phx (disk, shell, hollow mesh,...)
Align arm collision mesh with arm scenery mesh.
Merge branch 'wip/collisionMesh-stapler'
Visualize collision meshes as wireframes on the screen.
Removes unnecessary construction in PhysicsManagerStateTests.
Use collision mesh for staple instead of capsule.
Transfer pose of physics representation to wireframe.
Use collision mesh for staple instead of capsule.
TransferInputPoseBehavior::doWakeUp checks for needed representations.