Allow additional logging to disk for projectcounts aggregation

The logging to disk is happening at debug level, and hence helps
debugging gone wrong cron jobs.

Bug: 72740
Change-Id: I75ea2605fcc826264eb70360f486a5cd6cc9c825
Add switch for automatic pushing of data repo for projectcounts aggregation

Bug: 72740
Change-Id: I3fa7b025f1d5bad3e3fca53138c22aecb720f024
Add header line to CSVs for projectcounts aggregation

Change-Id: I59ee3c235677d4c5538230fd591341e2b32b970f