Configuring travis with NodeJS 8+.

Author: ech0s7r

.travis.yml

@@ -4,9 +4,6 @@ git:
 matrix:
   fast_finish: true
   include:
-    - node_js: 6.12.3
-    - node_js: 6
-    - node_js: 7
     - node_js: 8
     - node_js: 9
     - node_js: 10

README.md

@@ -22,7 +22,7 @@ NodeJS library for Mastercard API compliant payload encryption/decryption.
 
 ### Compatibility <a name="compatibility"></a>
 
-Node 6.12.3+
+NodeJS 8+
 
 There shouldn't be any Node compatibility issues with this package, but it's a good idea to keep your Node versions up-to-date. It is recommended that you use one of the LTS Node.js releases, or one of the more general recent releases. A Node version manager such as nvm (Mac and Linux) or nvm-windows is a good way to stay on top of this.