Bumped version to 1.1.2, FTW
improved the dashboards API documentation
added API docs for our widgetsRepositoryStore endpoint
added API doc for our widgets/ endpoint

also: updated the example (typo) widgets so they work on a cors-enabled server
fixed distance measure unit display bug
consider 201/Created to be a successfull call

was failing on first call to adding an apiSubscription
added an afterHistoryUpdate callback

mainly for fetching a backlog of manual entries for fitbit
removed noisy debug messages in the frontend
fixed error code for conflicting api subscription
backsync has to happen right after history update
added utility endpoint to manage fitbit apiSubscriptions

only 1 apiSubscription/user/key :-(
backsync supercedes backfill, user profile additions

We don't need the intraday backfill anymore since we have the aggressive backsync mechanism that does the same thing (and more)
fixed logged data not being reflected in the timeline

mostly: changed persistence handling from extractors to createOrUpdate
Merge branch 'release/1.1.2' into development
reset time series fetching to the max

added more default channels