update deps versions

composer.json

@@ -4,7 +4,6 @@
     "license": "MIT",
     "type": "project",
     "keywords": ["slim-framework", "skeleton", "doctrine"],
-    "minimum-stability": "dev",
     "authors": [
         {
             "name": "Shameer",
@@ -14,17 +13,22 @@
     ],
     "require": {
         "php": ">=5.5.0",
-        "slim/slim": "3.1.*",
+        "slim/slim": "^3.4",
         "doctrine/dbal": "2.5.*",
         "slim/flash": "^0.1.0",
-        "monolog/monolog": "^1.13",
-        "slim/twig-view": "^1.1",
-        "vlucas/phpdotenv": "^2.0",
-        "shameerc/slim3-aura-di": "dev-master"
+        "monolog/monolog": "^1.19",
+        "slim/twig-view": "^2.1",
+        "vlucas/phpdotenv": "^2.2",
+        "shameerc/slim3-aura-di": "^1.0"
     },
     "autoload": {
         "psr-4": {
             "App\\": "src"
         }
+    },
+    "scripts": {
+        "post-root-package-install": [
+            "cp .env.example .env"
+        ]
     }
-}
+}