add DenseTools.h and .cpp
Used specific properties of dense matrices in applyKnownSolution().
add Tests/TestTools.h to store utility functions
Added test for applying boundary conditions to a very simple example.
Reformatted the code.
GaussAlgorithm class should satisfy this interface
use a tempalte function to check interface of linear solver stuff
add zero initialization of global matrix.
Changed convert-Routines in FemLib/FEMEnums.cpp to a consistent behaviour.
Using logog for loging instead of std::cout in Gui/DataView.
Using logog for loging instead of std::cout in Gui/VtkVis.
Init attribute _grid in inializer list of class VtkMeshSource.
Call by (const) reference for argument of VtkStationSource::GetIndexByName().
Using logog for loging instead of std::cout in Gui/Vrpn.
Using logog for loging instead of std::cout in Gui/VtkAct.
Using logog for loging in mainwindow.h
Merge pull request #156 from TomFischer/LogogFemLibAndGui

Introducing logog and some code cleanup.
Merge pull request #145 from norihiro-w/add-dense-solver-tools

Add dense linear solver tools
Implemented export of 2D meshes as SHPT_POLYGON shapefiles
Made functionality for exporting 2D meshes to Shapefiles available in GUI