roo_display 1.3.0

This release makes roo_windows depend on dejwk/roo_io, where the I/O functionality of dejwk/roo_display has been moved to.

New features:

• Implemented incremental redraw with deadline. If redrawing takes more than budgeted time, it is interrupted, to allow other activities to commence.
• Added support for auto-scrollable log.
• Use scheduler to auto-schedule updates. Makes it easier to implement window applications.

Bug fixes:

• Fixed off-by-one errors in the scrollable panel.
• Fixed crash in the scrollable panel with scrollbar enabled.

roo_windows 1.2.0

Initial release.