Add .env reading flow in config.php

Will check if there is a read_env_file.php and then run it to load .env
file in /configs folder

This file can hold secrets that are not to be checked into git

Updated edit.js file to be eslint compatible

www/configs/.env.example

@@ -0,0 +1,8 @@
+# Master configs
+BASE_NAME=
+G_TITLE=
+# DB configs
+DB_NAME_TEST=
+DB_USER_TEST=
+DB_PASS_TEST=
+DB_HOST_TEST=