Removing PHP7 since memcache lib isn't ported.

nicholasruunu · nicholasruunu · commit ff58056e3651 · 2016-01-08T00:58:05.000+01:00
diff --git a/composer.json b/composer.json
@@ -27,7 +27,7 @@
     ],
     "require":
     {
-        "php":                  "^5.5|7.0",
+        "php":                  "^5.5",
         "ext-memcache":         "*",
         "psr/cache":            "1.0.0",
         "cache/adapter-common": "^0.1",
