All components use the double pipe (#75)

Author: prisis

composer.json

@@ -18,12 +18,12 @@
         }
     ],
     "require":           {
-        "php":                      "^5.5|^7.0",
+        "php":                      "^5.5 || ^7.0",
         "psr/cache":                "^1.0",
         "cache/hierarchical-cache": "^0.2"
     },
     "require-dev":       {
-        "phpunit/phpunit":         "^4.0|^5.1",
+        "phpunit/phpunit":         "^4.0 || ^5.1",
         "cache/integration-tests": "^0.10"
     },
     "autoload":          {