Change config to camel case with backwards compatibility

This refactors the configs a bit to now use camel case everywhere.
This change should help to clean up the config interface and make it
better understandable.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

lib/models/index.js

@@ -15,8 +15,8 @@ dbconfig.logging = config.debug ? logger.info : false
 var sequelize = null
 
 // Heroku specific
-if (config.dburl) {
-  sequelize = new Sequelize(config.dburl, dbconfig)
+if (config.dbURL) {
+  sequelize = new Sequelize(config.dbURL, dbconfig)
 } else {
   sequelize = new Sequelize(dbconfig.database, dbconfig.username, dbconfig.password, dbconfig)
 }