Add an alias for a matrix map.
Create a templated method in the MeshModel and IOMesh to automatically
cast the underlying mesh.

Create an interpolate() method in the VegaVolumetricMesh class to
interpolate surface of the underlying volumetric mesh with an external
surface mesh and clean up the interface.

Create a computeGravity() method in the VegaVolumetricMesh class
to compute gravity forces.

Refactor getVelocity() method in DeformableSceneObject and add a
variable to hold the gravity vector.

Refactor SceneObject. Add SceneModelRenderDelegate render delegate to
take care of renderign operations for this model. Create visual,
physics and collision model variables.

Remove render delegates from the StaticSceneObject, this is now handled
by it base class.

Add storage for the gravity force in VegaFEMDeformableSceneObject and
initialized properly. Compute internal force by multiplying K*positions
instead of calling the vega function.

Refactor DefaultSimulator, VegaFEMModelSimulator. This class will be
marked obsolete soon.

and their tests. Streamline and refactor
time integrators and their tests.

to just NewtonMethod. Update the solve routine
so it always goes into the armijo loop, subsequent
function norms are computed there. If the user wants
to disable the armijo updated then it should set the
armijoMax in the base class. The armijo function now
takes an extra parameter, the old function evaluation
norm.

module.

- Also replace GL/glew by vtk_glew in Core/RenderDetail
- Remove empty first line in those

This module implements forward and backward Euler methods.

ENH: Add unit tests

ENH: Implement Newton's method. Used in the backward Euler method.

Add test for backward euler.

Fix MacOSX compilation error.

BUG: Make sure row major sparse containers are used
for all matrix computations.

Clean up interfaces, fix linking errors and transfer implementations
to cpp files.

Documents methods and variables. Clean solvers test.

Adding more documentation. Clean solver tests and interfaces.

Fix discrepancies in iterative solvers errors. Add more documentation.

VRPNDeviceServer did not properly setting framework termination flags
VRPNDeviceServer was also wrapping vrpn_Connection in a shared_ptr,
this was causing a double delete because vrpn_ConnectionManager
cleans up after connections made with vrpn_create_server_connection()

Add namespace to matrices.

Closes #61

Add a flag to computer the residual for iterative methods
changes to SOR and Gauss-Seidel methods

Conflicts:
	Solvers/BackwardSOR.h
	Solvers/ForwardGaussSeidel.cpp

Adds base classes for solver module.
Adds various iterative and direct solvers: Conjugate gradient, Gauss-Seidel

Conflicts:
	Solvers/CMakeLists.txt
	Solvers/SolverBase.h