MAGETWO-71442: Updated root composer.json file with current release #10482

 - Merge Pull Request #10482 from okorshenko/magento2:2.1.10-composer-update
 - Merged commits:
   1. b15b8aa

Author: Oleksii Korshenko

composer.json

@@ -2,7 +2,7 @@
     "name": "magento/magento2ce",
     "description": "Magento 2 (Community Edition)",
     "type": "project",
-    "version": "2.1.7",
+    "version": "2.1.10-dev",
     "license": [
         "OSL-3.0",
         "AFL-3.0"