Added a tree with some sample data

The sample data needs to be replaced with murders!
Added real murder data
Styled the murder tree
Colored closed tree branches
Merge branch 'master' into diagrams
Merge branch 'master' into diagrams
Removed console.log
Added pan/zoom on the murder tree
Made cursor more intuitive for murder tree
Merge pull request #34 from kennib/diagrams

Diagrams