added 30sec tutorial at the beginning, updated simonetripodi PGP key
added 30sec tutorial at the beginning, updated simonetripodi PGP key

git-svn-id: 522c0d53943162a6437d919c1900af0a20491c0c@1002981 13f79535-47bb-0310-9956-ffa450edef68

sncap/oltu,enamrik/oltu,sebadiaz/oltu,sncap/oltu,jimbarritt/amber,apache/oltu,sebadiaz/oltu,enamrik/oltu,sebadiaz/oltu,enamrik/oltu,englishtown/oltu,jimbarritt/amber,englishtown/oltu,apache/oltu