Composer installer support (#1619)

* Update composer.json

Adding support for composer custom install path

* Update composer.json

composer.json

@@ -2,6 +2,7 @@
   "name": "almasaeed2010/adminlte",
   "description": "AdminLTE - admin control panel and dashboard that's based on Bootstrap 3",
   "homepage": "https://adminlte.io/",
+  "type": "template",
   "keywords": [
     "css",
     "js",
@@ -22,5 +23,8 @@
   "license": "MIT",
   "support": {
     "issues": "https://github.com/almasaeed2010/AdminLTE/issues"
+  },
+  "require": {
+    "composer/installers": "1.*"
   }
 }