Compliant: fixing mapping's geometric stiffness assembly

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9931 b7f1a160-662a-0410-a6d8-bea165342f16
cmake: SOFA-EXTERNAL_BOOST option added to use system Boost libraries, or Boost located in SOFA-EXTERNAL_BOOST_PATH if not empty

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9932 b7f1a160-662a-0410-a6d8-bea165342f16
SensabileEmulation: Making it compatible with Windows

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9933 b7f1a160-662a-0410-a6d8-bea165342f16
Compliant: added assembled geometric stiffness matrices for SVD-based CorotationalStrainMapping, for both 2D and 3D material dimensions (Maple generated code)

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9934 b7f1a160-662a-0410-a6d8-bea165342f16
Moved ExtensionMapping and DistanceMapping to SofaMiscMapping, and removed any dependence of Compliant on Flexible.



git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9935 b7f1a160-662a-0410-a6d8-bea165342f16
[ADD] Getter of mapping 3D (of barycentric coords) 

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9936 b7f1a160-662a-0410-a6d8-bea165342f16
cmake: fix libpng include path on unix

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9937 b7f1a160-662a-0410-a6d8-bea165342f16
[ADD] "Const" to getMap3D

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9938 b7f1a160-662a-0410-a6d8-bea165342f16