Merge pull request #49 from tidepool-org/jebeck/one-day-navstring

improve format of dates in tideline navbar
no, really, actually make tideline have the same dimensions as blip
adjust two-week view stats widget to fit in blip minimum container
Merge branch 'master' into jebeck/issue43-two-week-reverse-sort
switch to _id everywhere
Merge branch 'master' into jebeck/issue43-two-week-reverse-sort