7.0 monitoring

port MP from https://code.launchpad.net/~camptocamp/server-env-tools/7.0-monitoring/+merge/215138 as requested as part of #35 
There's nothing much I can do about this. What I need here is the stdlib resource module, not openerp.addons.resource. This warning is caused by Odoo playing tricks with sys.path to allow shortcut imports, as well as importing from 'odoo' or 'openerp' indifferently.