First working version of web api for copy paste

Simple implementation of REST server which enable upload and download of
raw text strings using the web calls
1. Store :  curl --data "data=this is the text on cp"
http://localhost:8080/users/apsunde
here apsunde is user id.
2. Retrieve : curl  http://localhost:8080/users/apsunde

No Exception handling ! no inteligent HTTP status mappings yet.