some refactoring and fixed #38
add gridlines for the xaxis
implement panning of the chart
reformatting
add i18n
open legend, if no timeseries has data
highlight y-axis when selecting a timeseries in legend
add permalink generation as qr-code
refactor formatting
Merge branch 'develop' into ecmwf
Merge branch 'develop' into ecmwf
update ensemble modifications
support the highchart format while requesting timeseries data
refactoring folder structure
update internationalization for the main/start page
i18n fix
i18n fix
use maven-git-commit-id-plugin to add versioning information
extract some configuration and centralize it
adjust to new flot formatter of the timeseries-api