ready branch for testing

additonal work on treatments and pump status

Notes:

new: persistent logging with history paging
new: pump status for running treatments and sensor status (NS pump pill)
new: treatments feature
new: NS uploading errors exposed to UI log
new: refactoring

fix: CGM trend status is incorrect when one of the CGM errors is present #141
fix: Make trend arrows consistent across different OS versions #140
fix: Uploader doesn't seems to work without CGM data #108
fix: Realm crashes as seen on Crashlytics