Cut: focus widget has a selection, a 'cut' slot and 'canCut'
Copy: focus widget has a selection and a 'copy' slot
Paste: focus widget has a 'paste' slot and can accept the clipboard item
The model is the correct place to determine what data gets copied. This
also paves way to support other models where the data to be copied is
not plain text
* Timestamp at millisec resolution
* Log level selection - Info by default
* Auto scroll control - enable(default)/disable
* Support copy (selected) logs to clipboard
* Support clear logs
* Annotate dock window title, if not on top (aka visible)