Merge pull request #365 from nelenkov/dev

first pass at support for large number of apps (two step info fetching), cf. #361
Store the correct dates for replies in the db and changed how the two dates are used for replies to make to code a bit more logical
Merge branch 'dev' of https://github.com/AndlyticsProject/andlytics into dev
minor
Merge pull request #366 from nelenkov/dev

properly(?) handle incomplete apps, see #361
more debug logging