[[ RefactorGraphics ]] Change min/max to SkMin32/SkMax32.
[[ RefactorGraphics ]] Remove 1-bit mask usage from w32 text rendering (makes it work nicely!)
Merge branch 'refactor-graphics' of https://github.com/runrev/livecode into refactor-graphics
[[ RefactorGraphics ]] Added 'need_layer' flag to MCGContextBegin - ensures layers aren't created unless necessary.
[[ RefactorGraphics ]] Changed w32 text rendering to use a sprite so that clip mask is properly taken into account.
Merge branch 'refactor-graphics' of https://github.com/runrev/livecode into refactor-graphics