WIP Update cms-tools-ana.xml

Addressing #71 
`$e` is non-standard.  Do we need it in the metadata?  IMO we don't, we  can display the text in the template.  The short version of the licence (i.e. `$a`) should be enough to identify a licence.  See point 3 in https://github.com/cernopendata/opendata.cern.ch/issues/71#issuecomment-60942320