Inclusion of "CppUTest/TestRegistry.h" is a blast from the past
Merge pull request #381 from arstrube/obsolete

Inclusion of "CppUTest/TestRegistry.h" is a blast from the past
Start work on setjmp / longjmp
Add implementations from cl2000 for now
Enable testing

In order to test the functions implemented here,
it is necessary to provide library functions for all
the others. So I introduced #define testing true in
order to facilitate that.
Comment in "testing" so it can be built on Travis