Bug fix release

New

• Added Shift-e keyboard shortcut to edit note text for nodes and connections.

Changes

• Updated Italian translation (thanks to @albanobattistella)
• Improved automatic layout of node trees when adjacent tree sizes change.
• Changed node and connection contextual menus to show "Edit Note" instead of "Add Note" and "Remove Note" options.

Bug Fixes

• Fixing compilation issues.
• Fixing behavior of 't' command when node is selected.
• Fixing support for undo/redo of root node insertion.