fixed problems with the rpath: rpath on installed library was not set; tests were using installed DoocsAdapter instead of library from build directory

necessary update for latest change in the ControlSystemAdapter interface (removal of deprecated functions)

properly compute the length of the DOOCS property name when deciding whether to enable history for it or not

disable history for properties with names longer than 64 characters, since DOOCS seems not to support this

removed Makefile, since it prevents the debian package tools from working and it is redunant as we have cmake now.

- activated history for scalars

also export the LIBRARY_DIRS variable to the calling CMakeLists.txt (needed to publish it to further downstream dependencies)