Implement updating many of the parameters via the webcontrol without restarting camera

Remove standard deviation computations

Add viewing user and update MHD authentication functions

Add webcontrol for individual cameras

Initialize reconnect_count

Fix the transition copyright years

Limit script location when webcontrol is open

Revise util_exec_command to use execv with parm array

Change default to use a hardware decoder for netcams if available

Use data-urlencode for curl samples

Add debug messages to post processing

Assign nullptr after avio_close

Revise h264 profile

Revise copyright statements

Revise headers for mpegts