getting xwiki 1.0 source

Hello all, I wanted to update the xwiki pre 1.0 version I am using to the final 1.0 but first I have to patch it with the patch attached to XWIKI-865 to make it work with the ldap server over SSL. However there does not seem to have a source tarball available and I don't see what I need to checkout from subversion to get the XWIKI_1_0 branch. Can anyone give me a clue ? Thanks, Philippe