Update .travis.yml to use --include-before/--include-after when calling php-semver-checker-git.

Author: tomzx

.travis.yml

@@ -21,4 +21,4 @@ script:
 after_script:
     - wget https://scrutinizer-ci.com/ocular.phar
     - php ocular.phar code-coverage:upload --format=php-clover log/coverage.xml
-    - php bin/php-semver-checker-git suggest src src --allow-detached --details -vvv
+    - php bin/php-semver-checker-git suggest --allow-detached --details -vvv --include-before=src --include-after=src