Merge pull request nitrogen#108 from fbrau/master

this merge add plugin templates in the .prototypes directory

rel/overlay/common/site/.prototypes/plugin.app.src

@@ -0,0 +1,11 @@
+{application, [[[NAME]]],
+ [
+  {description, "A sample plugin for the Nitrogen Web Framework"},
+  {vsn, ""},
+  {registered, []},
+  {applications, [
+                  kernel,
+                  stdlib
+                 ]},
+  {env, []}
+ ]}.

rel/overlay/common/site/.prototypes/plugin_page.erl

@@ -0,0 +1,17 @@
+%% -*- mode: nitrogen -*-
+%% vim: ts=4 sw=4 et
+-module ([[[NAME]]]).
+-compile(export_all).
+-include_lib("nitrogen_core/include/wf.hrl").
+-include("records.hrl").
+
+main() -> #template { file="./site/templates/bare.html" }.
+
+title() -> "Testing plugin [[[NAME]]]!".
+
+body() -> 
+	wf:wire(#sample_action{}),
+	[
+		"You should see some more content and an alert: <b>",
+		#sample_element{}, "</b>"
+	].