IHF: Composer json version fixes.

Author: dmitry-ivanov

composer.json

@@ -17,8 +17,8 @@
         "symfony/var-dumper": "^3.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^5.5",
-        "mockery/mockery": "^0.9.5"
+        "phpunit/phpunit": "^5.0",
+        "mockery/mockery": "^0.9"
     },
     "autoload": {
         "files": ["src/autoload.php"],