Add 'minpoints' filter for new transients detected via variability indices.
Add 'minpoints' filter for new transients detected via variability indices.

Note this does not affect transients detected as new sources during the
association process.

mkuiack/tkp,bartscheers/tkp,transientskp/tkp,transientskp/tkp,mkuiack/tkp,bartscheers/tkp