Flush buffers on soft reset

Have soft reset flush buffers to clear pending commands, and free
controller up for new jobs.
Add G90.1 and G91.1 support to the visualizer.
Merge pull request #102 from michmerr/commandqueue

Flush buffers on soft reset
Fixing refresh.gif
Fixed negative remaining time bug. Closes #117
Merge branch 'gcode' of github.com:michmerr/Universal-G-Code-Sender into michmerr-gcode
Combined work on simulator and estimation

Simulator may need to be backed out. General cleanup needs to take
place.
Fix job success determination.

Number of commands was getting zeroed, and never getting incremented
during the run.
Add space to completion dialog
Merge branch 'master' of https://github.com/winder/Universal-G-Code-Sender
Merge branch 'master' of https://github.com/michmerr/Universal-G-Code-Sender into gclocal

Conflicts:
	src/com/willwinder/universalgcodesender/MainWindow.java