Require any WP-CLI, but install dev-master for tests

Author: danielbachhuber

.travis.yml

@@ -37,6 +37,7 @@ before_install:
   - phpenv config-rm xdebug.ini
 
 install:
+  - composer require wp-cli/wp-cli:dev-master
   - composer install
   - bash bin/install-package-tests.sh
 

composer.json

@@ -21,7 +21,7 @@
         "files": [ "db-command.php" ]
     },
     "require": {
-        "wp-cli/wp-cli": "dev-master"
+        "wp-cli/wp-cli": "*"
     },
     "require-dev": {
         "behat/behat": "~2.5"