canviz.js: Draw only the first graph if there is more than one in the xdot file. See issue #18.
canviz.js: Draw only the first graph if there is more than one in the xdot file. See issue #18.


git-svn-id: d236aa11b63010c45751038f21095274a1190d52@127 96afbf3d-d051-0410-af9b-0f47d9322047

svn2github/canviz,svn2github/canviz,svn2github/canviz