wiki: page GettingStarted update +2014.0_RC3

git-svn-id: http://pentoo.googlecode.com/svn@5863 04556701-5d27-2e10-b29c-201e0903c0fa
wiki: page DownloadPentoo update +more info

git-svn-id: http://pentoo.googlecode.com/svn@5864 04556701-5d27-2e10-b29c-201e0903c0fa