Set requires attribute to prevent incompatibility issues.

Author: dadish

ProcessGraphQL.module

@@ -19,6 +19,10 @@ class ProcessGraphQL extends Process implements Module {
 			'singular' => true,
 			'autoload' => 'process=ProcessTemplate',
 			'icon' => 'object-group',
+      'requires' => array(
+         'PHP>=5.5.x', 
+         'ProcessWire>=3.x.x'
+      	),
 			);
 	}