Fix autoload path, add missing composer dump autoload

Author: schmengler

.travis/before_script.sh

@@ -34,8 +34,9 @@ fi
 
 # Add tests/src to autoload-dev on project level
 php -r '$composer_json = json_decode(file_get_contents("composer.json"), true);
-$composer_json["autoload-dev"]["psr-4"]["IntegerNet\\RewriteMap\\"] = "tests/src";
+$composer_json["autoload-dev"]["psr-4"]["IntegerNet\\RewriteMap\\"] = "vendor/integer-net/magento2-rewritemap/tests/src";
 file_put_contents("composer.json", $composer_json);'
+composer dumpautoload
 
 # prepare for test suite
 case $TEST_SUITE in