Merge pull request #91 from wp-cli/skip-broken-composer

Exclude broken Composer version

Author: schlessera

composer.json

@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "composer/composer": "^1.2.0",
+        "composer/composer": ">=1.2.0 <1.7.0 || ^1.7.1",
         "wp-cli/wp-cli": "^2"
     },
     "require-dev": {