A minimum Vector2D would be ideal, but hard to calculate - it would require
either a tree walk for every single resize operation (very expensive),
or storing after a `recalcSizePosRecursive` operation (significant work)
- Add `default` to switch statements to ensure that a defined value is returned from non-void functions
- Add `HY3_ENABLE_UNUSED_BLOCKS` option (default: `FALSE`) which controls a `#if` pre-processor
directive surrounding the apparently unused `unfullscreen` label (and associated block)
in `Hy3Layout.cpp`
Fullscreen was implemented via recalculating window bounds
with a fake node when you pressed fullscreen. The check has been moved
into `recalcSizePosRecursive` which causes the override to fire every
time a window's size is recalculated instead of only the first time.
Closes#34, #39
Logical window positions, used for mouse interaction, previously did
not match up with real window positions, leaving areas near the edges
of windows impossible to select with the mouse with window gaps active
or tab bars onscreen.
