get the google calendar's connector's number of calendars to automatically reset the timeline's styles and handle changes in hidden calendars correctly as well
DateTimeFormatters need not be serialized by Jackson
fixed unnecessary (buggy) color override
improved the runkeeper connector: calories are now retrieved and graphable in the timeline; null-values are better handled and facet templating is greatly improved
Merge branch 'development' of github.com:fluxtream/fluxtream-app into development