Add travis + add credits

.travis.yml

@@ -0,0 +1,16 @@
+language: php
+
+php:
+    - 5.4
+    - 5.5
+    - 5.6
+
+branches:
+    only:
+        - master
+before_script:
+    - composer self-update
+    - composer install --prefer-source --no-interaction
+    - sleep 5
+script:
+    - vendor/bin/phpspec run -f dot

spec/SeoMoz/RequestSpec.php

@@ -7,7 +7,6 @@
 use SeoMoz\Client\Client;
 use SeoMoz\Generator\RequestUrl;
 use SeoMoz\Validator\ResponseValidator;
-use stdClass;
 
 class RequestSpec extends ObjectBehavior
 {

src/SeoMoz/Generator/RequestUrl.php

@@ -2,6 +2,12 @@
 
 namespace SeoMoz\Generator;
 
+/**
+ * Class RequestUrl
+ * @package SeoMoz\Generator
+ * @author Jon Gotlin
+ * @author David Wickström
+ */
 class RequestUrl
 {
     /**

src/SeoMoz/Response.php

@@ -2,6 +2,11 @@
 
 namespace SeoMoz;
 
+/**
+ * Class Response
+ * @package SeoMoz
+ * @author Jon Gotlin
+ */
 final class Response
 {
     /**