Follow middleware naming convention

lib/cartodb/middleware/context/db-conn-setup.js

@@ -1,7 +1,7 @@
 const _ = require('underscore');
 
-module.exports = function dbConnSetupMiddleware(pgConnection) {
-    return function dbConnSetup(req, res, next) {
+module.exports = function dbConnSetup (pgConnection) {
+    return function dbConnSetupMiddleware(req, res, next) {
         const user = res.locals.user;
         pgConnection.setDBConn(user, res.locals, (err) => {
             if (err) {
@@ -18,11 +18,11 @@ module.exports = function dbConnSetupMiddleware(pgConnection) {
                 dbhost: global.environment.postgres.host,
                 dbport: global.environment.postgres.port
             });
-            
+
             res.set('X-Served-By-DB-Host', res.locals.dbhost);
 
             req.profiler.done('req2params');
-            
+
             next(null);
         });
     };