Update GraphDatabase.js

.read() method was polluting the root scope with e...

changed:
for (e in results){
        results[e].ins = _edges.ins[ results[e].uid];
        results[e].outs = _edges.outs[ results[e].uid];
}

to: 
for (var e in results){
        results[e].ins = _edges.ins[ results[e].uid];
        results[e].outs = _edges.outs[ results[e].uid];
}