- Runner do not define the environment, this is under the responsibility
of the parent script.
- Prefix all environment variables with NEO_TEST to avoid conflicts with
other applications
- Runner display all NEO-related environment variables in the report
- Cosmetic change: increase benchmark runner status column size

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2586 71dcc9de-d417-0410-9af5-da40c76e7ee4