when there is no data show -'s instead of ?'s since they have a real meaning to dexcom users
alarm fixes for bugs introduced in porting; style fixes for alarms and dropdown
make 2 days section a little easier to read
Merge pull request #2 from nightscout/feature/commonize

feature/commonize
Merge pull request #3 from brianhanifin/feature/commonize

Merge Feature/commonize with master