conpaas: mention libcurl4-openssl-dev in docs/installation.rst


git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@5320 ef35cc4a-2640-4bbf-98bc-65920db7d8ae
Galera: added conf for galera within mysql agent and service definition

git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@5321 ef35cc4a-2640-4bbf-98bc-65920db7d8ae
conpaas: make PHP service startup continue even if provisioning dependencies are not installed


git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@5322 ef35cc4a-2640-4bbf-98bc-65920db7d8ae