crash fix, behavior fix and cleanup

See merge request !647

explicitly expand tree in instrument library; otherwise when inserting first instrument this instrument isn't visible

use python_d.exe to run tests in debug builds on multi-config generators like MS Visual Studio

See merge request !642

hugo: corr links

See merge request !646

corr link

See merge request !645

hugo: installer links go to latest release

See merge request !644

hugo: various corrs

See merge request !643

In DEBUG builds:
Since the built BA libraries are linked to python_d.lib, also the python_d.exe has to be used to start tests. Otherwise a crash happens when starting the tests. In single-config generators this is done correctly, but in multi-config generators both debug and release executables have to be defined simultaneously.

hugo: corr links

See merge request !641

CMake: rm some options, shorten option names -> BA_SWIG, BA_TIFF, etc

See merge request !640