Added SuperBuild dependencies to IBAMR.
Added fluid simulation demo files in the Application folder

Fixied petsc's config vars.
Fixed compilation problem for IBAMR dependencies.
The SuperBuild now fetches and compiles IBAMR dependencies correctly.
Add libmesh external to SuperBuild.
Add lapack to superbuild.
Add fluid solver class.  This class will drive the initialization
of of the fluid solver pass its output to vtk pipeline and
comminicate with gui/widgets to start or stop simulation.
Add testing file for the simulator.

Issue #17

Conflicts:
	CMakeLists.txt
Add filters to extract boundary edges.

We use the boundary edges (vessel cavities entries/exits)
to generate sources/sinks there.
Add option to build IBAMR external project within MSVTK.
Add a test for simulator and for boundary edge filter.

Issue #17
Rename fluid application,refactor fluid simulator.

Refactor classes that interface with IBAMR and add pimpl design.
Add more solver parameters to the vtk interface in
msvFluidSimulator.h/.cxx

Issue #17

Conflicts:
	CMakeLists.txt
Rebase master on top of this branch.  Fix merging problems and bugs.

Issue #17

Conflicts:
	CMakeLists.txt
Merge branch '17-IBAMR_APP'

* 17-IBAMR_APP:
  Rebase master on top of this branch.  Fix merging problems and bugs.
  Rename fluid application,refactor fluid simulator.
  Add filters to extract boundary edges.
  Added fluid simulation demo files in the Application folder
  Added SuperBuild dependencies to IBAMR.