[maven-release-plugin] prepare for next development iteration
Try to fix data persitant store.
Update dependencies and plugins.
USe nicer webfonts.
Fix typos in markdown.
Fix data storage.
Extract css for error sites.
Extract css for error sites.
Commit map database.
Merging conflict.
[maven-release-plugin] prepare release server-0.2.12
Merge tag 'server-0.2.12' into stable

[maven-release-plugin]  copy for tag server-0.2.12