fixed bug 'crash on create function in readonly mode' we now simply disallow this.
fixed bug 'crash on create function in readonly mode' we now simply disallow
this.

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