new output data structure to suit d3.js's needs

output is now an array of objects without a hierarchical order
Added hierarchical class notations for imports property
Add hierarchical names for objects
add end nodes (functional version)
Add search for common nodes
change if clause on common nodes push to work properly
create example data for wiki article "Informationssicherheit"

data structure:
name: identifier of current node
_nodes: child nodes fpr internal procession
imports: identifiers of child nodes common with root node
size: number of child nodes
Add cleanup of output data, statistics & check for duplicates
cleanup code
edited data
example image (svg)
clean internal css, new font for node labels
highlight 2 example connections