uses format:
SD Printing: pp.p% | Est: hh:mm:ss of hh:mm:ss of hh:mm:ss remaining
Printing: pp.p% | @ Line# xxx of yyyyy lines | Est: hh:mm:ss of hh:mm:ss remaining

Added an Estimated Time Remaining of Total Time to the status bar.

for non-SD Printing. They get more and more accurate until the end.

Catch exception so that disconnection does not give a traceback

Small change to enable T0 and T1 commands.

French translations update

Experimental

Bugfix: gviz exception while printing

Remove alphabetic sort order of baud rate combobox

Remove ability to click on Z +/- 100. Fixes #86