GitLab

This gets rid of multiple inheritance in the actual Joint classes

This was natural since *all* of the inherited classes of Force all inherited
Force and Item themselves.

Previously Body was a root class and all subclasses of Body inherited both
Item and Body. This seemed strange.

This is the first of a small set of cleanup patches that I want to do because
there were some refactorings necessary in the frameworks branch. And if I do
them there only, it will be very difficult to forward port any bugfixes later.

Conflicts:
	step.appdata.xml

* KDE/4.14:
  Stop using a separate option to choose whether to build tests.
  Fix the build of stepcore tests.
  SVN_SILENT made messages (.desktop file)
  SVN_SILENT made messages (.desktop file)

* KDE/4.13:
  Stop using a separate option to choose whether to build tests.
  Fix the build of stepcore tests.
  SVN_SILENT made messages (.desktop file)
  SVN_SILENT made messages (.desktop file)

There is no reason to use STEPCORE_TESTS instead of KDE's infrastructure
with the KDE4_BUILD_TESTS option and the kde4_add_unit_test() macro,
which also allows us to get rid of some calls in stepcore_tests'
CMakeLists.txt.

There's still a lot to be improved in step's build system, though.

It fixes errors such as this one, caused by conflicting types being
passed to Eigen's Matrix constructor.

../stepcore_tests/contacts.cc:121:54: error: call to constructor of 'StepCore::Vector2d' (aka 'Matrix<double, 2, 1>') is ambiguous
            << int(StepCore::Contact::Contacted) << (StepCore::Vector2d(1,1e-5)*9.999999e-04).eval()
                                                     ^                  ~~~~~~
/usr/local/include/eigen2/Eigen/src/Core/Matrix.h:348:25: note: candidate constructor
    EIGEN_STRONG_INLINE Matrix(int x, int y) : m_storage(x*y, x, y)
                        ^
/usr/local/include/eigen2/Eigen/src/Core/Matrix.h:373:25: note: candidate constructor
    EIGEN_STRONG_INLINE Matrix(const double& x, const double& y)
                        ^
/usr/local/include/eigen2/Eigen/src/Core/Matrix.h:365:25: note: candidate constructor
    EIGEN_STRONG_INLINE Matrix(const float& x, const float& y)
                        ^

Submitted by:	Vadim Zukhov <persgray@gmail.com>
REVIEW:		119026