Bump to v3.0.0.

internal/baseToString.js

@@ -0,0 +1,19 @@
+define([], function() {
+
+  /**
+   * Converts `value` to a string if it is not one. An empty string is returned
+   * for `null` or `undefined` values.
+   *
+   * @private
+   * @param {*} value The value to process.
+   * @returns {string} Returns the string.
+   */
+  function baseToString(value) {
+    if (typeof value == 'string') {
+      return value;
+    }
+    return value == null ? '' : (value + '');
+  }
+
+  return baseToString;
+});