mod_storage_sql: Compose a keyval+ store out of keyval and map store methods Removes the need for the shim in storagemanager. The methods only really access the 'store' property of the first (self) argument, so this is safe.

module:log("error", "mod_pep_plus has been renamed to mod_pep, please update your config file. Auto-loading mod_pep...");
module:depends("pep");