cleaned-up bootstrap: - fail on to old tool-versions - removed legacy code
cleaned-up bootstrap:
- fail on to old tool-versions
- removed legacy code

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