Require wp-cli/wp-cli ^1.5; fix indent.

Author: gitlost

composer.json

@@ -18,14 +18,14 @@
     "prefer-stable": true,
     "autoload": {
         "psr-4": {
-			"": "src/"
-		},
+            "": "src/"
+        },
         "files": [ "db-command.php" ]
     },
     "require": {},
     "require-dev": {
         "behat/behat": "~2.5",
-        "wp-cli/wp-cli": "*"
+        "wp-cli/wp-cli": "^1.5"
     },
     "extra": {
         "branch-alias": {