Add support for a local mqtt broke that uses ssl.  Allow user to add in their ca,crt file and if exists use SSL for mqtt uploads.

Added new mqtt parameter to the config_template for ca.crt file location and added check for ca.crt parameter variable incase it is not there in user's config

When low disk space detected try to upload the readings to free up the disk space.  On Boot sleep for 0.5 seconds at start.

Have monitored different errors from MQTT during upload after connection.  In the event of an OSError or IndexError try to disconnect MQTT to see if it prevents hangs.

If edit made in pycharm ignore .idea/ structure

This reverts commit c902806.

Corrected logging in mqtt update as missing import on error