Add a more involved REST example

A pastebin type application that can optionally highlight the output as
both text and HTML.

examples/rest_pastebin/README.md

@@ -0,0 +1,52 @@
+Cowboy Rest Hello World
+=======================
+
+To compile this example you need rebar in your PATH.
+
+Type the following command:
+```
+$ rebar get-deps compile
+```
+
+You can then start the Erlang node with the following command:
+```
+./start.sh
+```
+
+Then run any given command or point your browser to the indicated URL.
+
+Examples
+--------
+
+To upload something to the paste application, you can use curl like:
+```
+<command> | curl -i --data-urlencode paste@- localhost:8080
+```
+or to upload my_file:
+```
+curl -i --data-urlencode paste@my_file localhost:8080
+```
+
+The URL of your data will be in the location header. Alternately, you can visit
+http://localhost:8080 with your favorite web browser and submit your paste via
+the form.
+
+Code that has been pasted can be highlighted with ?lang=<language> option if
+you have [highlight](http://www.andre-simon.de/doku/highlight/en/highlight.html)
+installed (although pygments or any other should work just fine). For example:
+```
+curl -i --data-urlencode paste@priv/index.html localhost:8080
+curl <url from location header>
+```
+
+Will show the text of the html file. If your terminal supports color
+sequences and highlight is installed:
+```
+curl <url from location header>?lang=html
+```
+
+Will show a syntax highlighted version of the source file. If you open the
+same URL in your web browser and your web browser tells cowboy that it prefers
+html files, you will see the file highlighted with html/css markup. Firefox is
+known to work.
+