more fixes after the repository split:
more fixes after the repository split:

makeing `make dist` work, again:

- src/gdk/Tests/ is gone (moved to MonetDB4)

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb