Enhancements to Revel command

Reformat of code
Allow user to use a mix of command line arguments and flags
Enhance the import tool to detect missing packages in the modules side
Added test cases for all commands

skeleton/README.md

@@ -0,0 +1,43 @@
+# Welcome to Revel
+
+A high-productivity web framework for the [Go language](http://www.golang.org/).
+
+
+### Start the web server:
+
+   revel run myapp
+
+### Go to http://localhost:9000/ and you'll see:
+
+    "It works"
+
+## Code Layout
+
+The directory structure of a generated Revel application:
+
+    conf/             Configuration directory
+        app.conf      Main app configuration file
+        routes        Routes definition file
+
+    app/              App sources
+        init.go       Interceptor registration
+        controllers/  App controllers go here
+        views/        Templates directory
+
+    messages/         Message files
+
+    public/           Public static assets
+        css/          CSS files
+        js/           Javascript files
+        images/       Image files
+
+    tests/            Test suites
+
+
+## Help
+
+* The [Getting Started with Revel](http://revel.github.io/tutorial/gettingstarted.html).
+* The [Revel guides](http://revel.github.io/manual/index.html).
+* The [Revel sample apps](http://revel.github.io/examples/index.html).
+* The [API documentation](https://godoc.org/github.com/revel/revel).
+