css path fixed
Merge branch 'master' of https://github.com:443/fluehmann/wikihistorybook.git
..
css path fixed
Merge branch 'master' of https://github.com:443/fluehmann/wikihistorybook.git
add selected class
add betweeness centrality as node color, weight and size
Zoom in: i, Zoom out: o
use css class selected