(1) Added a JSON-RPC server (PHP) - client (Javascript) communication protocol to complement current ajax.php / ajax_utils.js crude Ajax communication. Several of the old calls should be ported to the new protocol. (2) Limited the number of jobs in the queue table to 100 to prevent the application getting stuck in retrieving and updating the table.
Merge branch 'devel' of github.com:aarpon/hrm into devel