added sipsak installation instructions to SCRATCH_INSTALL git-svn-id: svn://192.168.202.10@566 3d104415-ff17-0410-8863-d5cf3c621b8a
added sipsak installation instructions to SCRATCH_INSTALL git-svn-id: svn://192.168.202.10@566 3d104415-ff17-0410-8863-d5cf3c621b8a