Rewrite config from /etc/airtime-saas to plain /etc/airtime

This is the results of sed -i -e 's|/etc/airtime-saas/|/etc/airtime/|' `grep -irl 'airtime-saas' airtime_mvc/ python_apps/` :P

It might need more testing, the airtime-saas part never really made sense, zf1 has environments for that, ie you would create a saas env based on production for instance.

I beleive legacy upstream was using this to share configuration between customers (ie. analyser runs only once and writes to a shared S3 bucket). I assume they mount the airtime-saas folder onto individual customers instances with a global config. Like I said, I don't feel that this makes sense since all it does is make hacking at the configs in airtime-saas a bit easier. A serious SaaS operation should be using something like puppet or ansible to achieve this.

airtime_mvc/application/configs/constants.php

@@ -110,7 +110,7 @@ define("WHMCS_API_URL", "https://account.sourcefabric.com/includes/api.php");
 define("SUBDOMAIN_WHMCS_CUSTOM_FIELD_NAME", "Choose your domain");
 
 //Sentry error logging
-define('SENTRY_CONFIG_PATH', '/etc/airtime-saas/sentry.airtime_web.ini');
+define('SENTRY_CONFIG_PATH', LIBRETIME_CONF_DIR . '/sentry.airtime_web.ini');
 
 //Provisioning status
 define('PROVISIONING_STATUS_SUSPENDED' , 'Suspended');