Sort out usage of namespaces
Hi,
since I plan to close #158 (closed) now, I am adding here an issue that Nils, I guess, brought up then:
ccd5f369 inspired me in adding a row here. Namespaces are all over the place, we may want to have that sorted out (i.e. only single namespace hyteg:: or add some more structure by directories, or something else ...). Our doxygen documentation and IDE code completion would also really benefit.
Cheers
Marcus