add persistence configuration documentation
detailled configuration of persistence options
add all config options
fix mistake in previous commit
add informations on parameters influenced by CoreBundle
add locales parameter documentation
fix most of @WouterJ comments
additions about the simple cms configuration
add locale configuration in xml and php
fix some more things pointed by @WouterJ
add missing fix in previous commit
fix some inconsistances that break travis tests
Merge pull request #264 from nykopol/cmf_simple_cms

Add documentation for CmfSimpleBundle configuration