updated directories and updated docker config

shared/node_modules/mysql/lib/PoolSelector.js

@@ -0,0 +1,31 @@
+
+/**
+ * PoolSelector
+ */
+var PoolSelector = module.exports = {};
+
+PoolSelector.RR = function PoolSelectorRoundRobin() {
+  var index = 0;
+
+  return function(clusterIds) {
+    if (index >= clusterIds.length) {
+      index = 0;
+    }
+
+    var clusterId = clusterIds[index++];
+
+    return clusterId;
+  };
+};
+
+PoolSelector.RANDOM = function PoolSelectorRandom() {
+  return function(clusterIds) {
+    return clusterIds[Math.floor(Math.random() * clusterIds.length)];
+  };
+};
+
+PoolSelector.ORDER = function PoolSelectorOrder() {
+  return function(clusterIds) {
+    return clusterIds[0];
+  };
+};