Resolve L2SS-218 "Move existing tooling to bootstrap dir"

This is the beginning.

Closes L2SS-218

bootstrap/etc/lofar20rc.sh

@@ -9,8 +9,6 @@
 # then be used as LOFAR20_DIR.  Otherwise the current directory will
 # be used.
 export LOFAR20_DIR=${1:-${PWD}}
-echo "Setting LOFAR20_DIR=${LOFAR20_DIR}"
-
 
 # This needs to be modified for a development environment.
 # Example:  ~/lofar2.0/tango