Laurent Bessard [Wed, 30 Jan 2013 19:03:25 +0100] rev 918
Fix bug with refresh PLC status tool bar
Edouard Tisserant [Wed, 30 Jan 2013 18:54:12 +1100] rev 917
Now logging have 4 levels
Laurent Bessard [Tue, 29 Jan 2013 23:41:00 +0100] rev 916
Improved matplotlib graphic debug panel implementation, adding force, release, split and delete graph buttons, replacing data grid by adding panel displaying non-numeric data between graphs