Travis Build Failure Fix (#62)

* Environment set and dynamic

* Removed local setting file added by mistake

* Benchmarks now working with dynamic environment variables make file pass in FACTOR and USE_MIDDLEWARE

* Removing messages I had added because the output looked cluttered
- Improving the output could be helpful
- Kept the order in the makefile

* clarify the number output meaning

* Travis Node versions updated

* More Versions in Travis Build

.travis.yml

@@ -1,8 +1,9 @@
 language: node_js
 node_js:
-  - "6"
-  - "7"
   - "8"
+  - "9"
+  - "10"
+  - "11"
 notifications:
   email:
     on_success: never