Prep v0.7.3 release

Author: zenkyomu

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "dagre",
-  "version": "0.7.2",
+  "version": "0.7.3",
   "main": [
     "dist/dagre.core.js",
     "dist/dagre.core.min.js"
@@ -20,7 +20,7 @@
     "test/**"
   ],
   "dependencies": {
-    "graphlib": "^1.0.3",
-    "lodash": "^2.4.1"
+    "graphlib": "^1.0.5",
+    "lodash": "^3.10.0"
   }
 }

dist/dagre.core.js

@@ -2825,7 +2825,7 @@ function removeEmptyRanks(g) {
   var layers = [];
   _.each(g.nodes(), function(v) {
     var rank = g.node(v).rank - offset;
-    if (!_.has(layers, rank)) {
+    if (!layers[rank]) {
       layers[rank] = [];
     }
     layers[rank].push(v);
@@ -2898,7 +2898,7 @@ function notime(name, fn) {
 }
 
 },{"./graphlib":7,"./lodash":10}],30:[function(require,module,exports){
-module.exports = "0.7.2";
+module.exports = "0.7.3";
 
 },{}]},{},[1])(1)
 });