Introduce break in Cim document path

[gerry]

The current questionnaire (upon activation of the submit button) will push valid documents through to the feed. We need to introduce a break in this to allow further checks. One initial proposal is (copied from email):

"...Although a little bit of a hack, if it's the case that each cim doc (or even if we only want to do these checks on particular docs, e.g. model docs) needs checking and given the 'go-ahead' by a person, then a simple mechanism may be to edit the docfeed class so that only those CimObjects? having xmlfiles that actually exist (ending with .xml) are harvested into the feed. We could break the link when, on creating the docs (exporting from the qn), we omit the .xml from the persisted file name. The checking mechanism/person will know that those files without the .xml are still be checked, and if okay can add the .xml to the filename - thus making them discoverable in the feed. "

[charlotte]

this will be pushed to the QC checks after information has been broadcast on the atom feed