Merge remote-tracking branch 'jan/develop' into develop

* jan/develop:
  add an ungrouping option in the diagram view
  add documentation info
  move default status settings to main settings
  adjust to new flot formatter of the timeseries-api
  extract some configuration and centralize it
  use maven-git-commit-id-plugin to add versioning information
  i18n fix
  i18n fix
  update internationalization for the main/start page
  refactoring folder structure
  support the highchart format while requesting timeseries data
  add permalink generation as qr-code
  highlight y-axis when selecting a timeseries in legend
  open legend, if no timeseries has data
  add i18n
  reformatting
  implement panning of the chart
URI decode permalink components
Merge branch 'fix/decode-permalink-uri-components' of https://github.com/autermann/js-sensorweb-client into ecmwf