backwards compatible alias with a warning

Author: nfriedly

lib/index.js

@@ -288,4 +288,17 @@ var watson = {
   });
 });
 
+Object.defineProperty(watson, 'language_translation', {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+  value: function(options) {
+    if (!options.silent) {
+      //eslint-disable-next-line no-console
+      console.warn(new Error("Watson language_translation is now language_translator. Set {silent: true} to disable this message.").stack)
+    }
+    return watson.language_translator(options);
+  }
+});
+
 module.exports = watson;