update token

Merge c7d51bb into 4e01b69

Merge 04920c6 into 3fb9ec6

add verbose and error log levels to flat logger

Flat log file supports exact template, that I need

remove sharpcompress definition in app.config

add option to disable single window mode

downgrade splat. reduce log verbosity level

add missing nuget.exe and update it

appveyor use VS2019