func PropString(prefix string, props neoism.Props) string {
	qstr := ""
	for k, _ := range props {
		if k != "id" {
			qstr += prefix + "." + k + " = {" + k + "} and "
		} else {
			qstr += "id(" + prefix + ") = {" + k + "} and "
		}
	}
	if qstr != "" {
		qstr = qstr[:len(qstr)-5]
	}
	return qstr
}
PropString construct a neois.Props using the prefix - which is the Type's
name and its parameters, and returns a map[string]interface{} that can be
used as the cypher query's parameters.
package vantaadb
import (
	"github.com/jmcvetta/neoism"
	"github.com/nathandao/vantaa/settings"
)
var db *neoism.Database = &neoism.Database{}
func Init() {
	var err error = nil
	db, err = neoism.Connect(settings.Get().DbUrl)
	if err != nil {
		panic(err)
	}
}