Add cyanogenmod statistics retrieving from server.
Add cron job to retrieve statistics every hour.
Update gitignore list.
Add petsistance to mongodb.
Version model moved into separate module.
Configure exporting of version model.
Move version statistics convertation into separate module.
Remove not used references.
Merge branch 'master' of github.com:ssidorchick/cyanogenmod-stats-gatherer

Conflicts:
	.gitignore