phpunit 5 dev dependency

Author: soukicz

Diff for: composer.json

@@ -2,8 +2,7 @@
   "name": "simplia/short-hash",
   "description": "Short hash",
   "minimum-stability": "stable",
-  "license": "proprietary",
-  "version": "0.0.1",
+  "license": "MIT",
   "authors": [
     {
       "name": "Petr Soukup",
@@ -14,7 +13,7 @@
     "php": ">=5.6.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "~4.0"
+    "phpunit/phpunit": "~5.0"
   },
   "autoload": {
     "psr-4": {