[[Imported from SVN: r9378]]

[[Imported from SVN: r9309]]

[[Imported from SVN: r9308]]

[[Imported from SVN: r9307]]

[[Imported from SVN: r9306]]

Because nowadays, it may not be a FieldMatrix anymore

[[Imported from SVN: r9305]]

[[Imported from SVN: r9304]]

[[Imported from SVN: r9303]]

[[Imported from SVN: r9302]]

[[Imported from SVN: r9301]]

[[Imported from SVN: r9300]]

[[Imported from SVN: r9299]]

[[Imported from SVN: r9298]]

[[Imported from SVN: r9297]]

[[Imported from SVN: r9296]]

[[Imported from SVN: r9295]]

[[Imported from SVN: r9294]]

These were only there to hack our way around a bug in the
interface of the Rotation class.  This bug has been fixed
quite a while ago.

[[Imported from SVN: r9293]]

[[Imported from SVN: r9292]]

[[Imported from SVN: r9290]]

    
Very surprisingly, it appears to work...

[[Imported from SVN: r9286]]

[[Imported from SVN: r9285]]

[[Imported from SVN: r9284]]

    
The Dune timers do not return wall time when using thread parallelism.

[[Imported from SVN: r9283]]

    
I still do not really understand it, but I believe it is
correct nevertheless.

[[Imported from SVN: r9282]]

[[Imported from SVN: r9281]]

[[Imported from SVN: r9202]]

[[Imported from SVN: r9201]]

[[Imported from SVN: r9200]]

[[Imported from SVN: r9199]]

[[Imported from SVN: r9196]]

And use it in the test.

This patch uses the new 'constexpr' macro.  Hence it is C++11 only.

[[Imported from SVN: r9195]]

[[Imported from SVN: r9194]]

[[Imported from SVN: r9193]]

[[Imported from SVN: r9192]]

[[Imported from SVN: r9191]]

[[Imported from SVN: r9190]]

This is a new required method for the interface of implementations of
the TargetSpace model.  We haven't needed it previously because all
spaces considered until today were embedded isometrically in a
Euclidean space.

[[Imported from SVN: r9189]]

[[Imported from SVN: r9187]]

[[Imported from SVN: r9163]]