Merge pull request #307 from chrisboulton/credis-bump

Bump credis to 1.7

Author: chrisboulton

composer.json

@@ -20,7 +20,7 @@
 	"require": {
 		"php": ">=5.3.0",
 		"ext-pcntl": "*",
-		"colinmollenhour/credis": "~1.2",
+		"colinmollenhour/credis": "~1.7",
 		"psr/log": "1.0.0"
 	},
 	"suggest": {