Added notice about data and icons taken from the homepage of the STWPB.
Merge branch 'master' into development
Fixed source version.
Updated readme.
New quadruple class for getting all data from website.
Updated ignore.
Updated build config
Fix #30

Prices are displayed inside listing.
Update #25

List of allergene is visible in overview listing.
Fix #25

Added allergene and zusatzstoffe in detail view on click.
Merge branch 'development'