Refactor CSRF class: improve token handling and update session variable names
Replace bulk message with ajax based message sending.
Added support for multiple recipients in bulk message, and also router based filtering.
Add support for multiple recipients in bulk message from customer list as requested by one of our Member. you can now send messages to multiple recipients at once from customer list.
Added Exception for CRON but not tested yet. i dont have multiple routers.
Added notify to know if cron has been executed or not.
