add the file settings_dev.py to be cleaned, set cache timeout to 0 (i.e. disable cache for tests)
#!/usr/bin/env bash
pushd `dirname $0` > /dev/null
SCRIPTPATH=`pwd -P`
popd > /dev/null
ROOTPATH="$SCRIPTPATH/.."
pushd "$ROOTPATH" > /dev/null
rm -rf .installed.cfg .mr.developer.cfg parts/ eggs/ develop-eggs/ bin/ \
src/cm/settings_local.py src/cm/settings_dev.py test-suite/workspace.info*.js \
test-suite/{clean-testserver.sh,karma.conf.dev.js} \
test-suite/{start-test-suite-dev.sh,start-testserver.sh}
find . -name '*.pyc' -or -name '*.egg-info' | xargs rm -rvf
popd > /dev/null