Pyscada

- Add svg to render ProcessFlowDiagram. Allows to resize to fit the window size
- Add OPC-UA protocol
- close DB connection in scheduler to allow multiple instance on the same DB to run
- Add INT8 and UINT8 variable value class
- change the date range picker JS library
- Add logrotate config file
- Add a slider to change the refresh rate value of data handling

- Add choose_login.html to have multiple login ways
- Add circular gauge to display control items
- Add silent delete option in admin for VariableState and Device to delete a lot of data
- Add grafana doc and config file to use Grafana to display data from a PyScada instance
- Add dictionaries to store string with a key. Allows to store strings for Variables

- Update docker config file
- Add optional PID_FILE_NAME to settings to allow multiple instances
- Add custom periodic auto caltulated variable

- add django channels to send informations between processes

- add fk_name in admin for bacnet device with 2 ForeignKey to Device model

- add pre_delete signals to stop the background process before deleting a device
- move widget post_save signal to the model to remove the global receiver (not filtering by sender)
- move device handlers to core
- add stop in DAQ Process restart
- move the device and variable protocol specific configuration to core
- add protocol name in device __str__ for the variable js admin file
- add complex events