add MathLib/Nonlinear in CMakeLists.txt
- move VecNormType to LinAlgEnums.h
- extend norm functions
add Picard class
add tests for Picard
remove unnecessary include
document private members
rename template parameter names and add documententation
make file ending consistent with other files
fixed indentation
Fixed some warnings under CMake 3.0.0
added missing method for pyramid-elements to edge-ratio metric
fixed handling of filename for writing condition-files in gui
Merge pull request #189 from norihiro-w/add-Picard

Picard nonlinear solver
Merge pull request #425 from bilke/cmake-3-warning-fixes

Fixed some warnings under CMake 3.0.0
made FEMConditions set on meshes non-editable to avoid crash ... this should be fixed based on decision if conditions can be set directly on meshes
activated legacy format for geometry data in debug mode
activated legacy format for geometry data in debug mode
Merge branch 'master' of https://github.com/ufz/ogs

Conflicts:
	Gui/DataView/GeoTreeView.cpp
	Gui/mainwindow.cpp
Introduced new CMake-option OGS_PACKAGE_ADDITIONAL_BINARIES.

This makes it easier to package the OGS File Converter into the redistributable
packages.
basic implementation of num-file-reader