Fixed modal plugin in Firefox

Changed function order so that the 'article' function
was defined before it was used rather than after it gets used
Fixed SVG element CSS for size

In Firefox the default SVG size is too small to display anything useful
Now we have a useful default
Merge pull request #9 from knowledge-graph/firefox-bug-fix

Firefox bug fix
Made tests run sequentially

This should fix the heisenbugs occurring
when the tests start before the build is complete
Merge remote-tracking branch 'kg/master'
Added modal editing
Merge branch 'master' of https://github.com/knowledge-graph/knowledge-graph.github.io