- a templated NULL value that resolve to nullptr for pointers

- remove NULL and 0 for nullptr
- use nil for Objective-C object
- minor reformats and whitespace fixes where seen

- fix another warning regression in ODT

- now properly measure chars
- runs are displayed about where they should go
- font size and space still incorrect

- the service has vanished.

- this is a leftover from the new property vectors

It has been gone for almost a decade

- Introduce XAP_Drawable with queueDraw and drawImmediate
- Add GR_Graphics queueDraw
- Support Cocoa and gtk3
- Documentation in docs/DRAWING.md
- Fix several of the preview bugs with the current version in Gtk3
- FV_View::draw(int, drawArgs) renamed to FV_View::drawPage()
- cocoa: fix non working preview in macOS dialogs
  - Use drawable in XAP_CocoaNSView
- cocoa: Remove the callback from the rulers and use drawable

- it's NDEBUG only
- you can "ignore" the assert like on gtk (which is command line)