conpaas: image creation scripts -- skip filesystem checks on ec2 as well


git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@4899 ef35cc4a-2640-4bbf-98bc-65920db7d8ae
Added galera sources

git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@4902 ef35cc4a-2640-4bbf-98bc-65920db7d8ae
conpaas-docs: mention that no external APT repositories should be enabled


git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@4904 ef35cc4a-2640-4bbf-98bc-65920db7d8ae