Add composer.json for the app/

This will act as a stub for developers to extend and improve upon when
they build their apps. Hopefully people don't find the two composer.json
files overly confusing.

Refs #8765

app/composer.json

@@ -0,0 +1,35 @@
+{
+	"name": "cakephp/app",
+	"description": "CakePHP Application skeleton",
+	"type": "library",
+	"keywords": ["application", "cakephp"],
+	"homepage": "http://cakephp.org",
+	"license": "MIT",
+	"authors": [
+		{
+			"name": "CakePHP Community",
+			"homepage": "https://github.com/cakephp/cakephp/graphs/contributors"
+		}
+	],
+	"support": {
+		"issues": "https://github.com/cakephp/cakephp/issues",
+		"forum": "http://stackoverflow.com/tags/cakephp",
+		"irc": "irc://irc.freenode.org/cakephp",
+		"source": "https://github.com/cakephp/cakephp"
+	},
+	"require": {
+		"php": ">=5.3.0",
+		"ext-mcrypt": "*"
+	},
+	"require-dev": {
+		"phpunit/phpunit": "3.7.*",
+		"cakephp/cakephp": "~2.8",
+		"cakephp/cakephp-codesniffer": "^1.0.0"
+	},
+	"bin": [
+		"lib/Cake/Console/cake"
+	],
+	"config": {
+		"vendor-dir": "Vendor/"
+	}
+}