- Implemented basic support for `NSPasteBoardType` and drag/drop events.
Not complete, but close.
- `geometry.rs` implements a basic `Rect`, with some conversion logic
for `NSRect`. Nothing special.
- Changes to `Window` to remove some of the forced delegate pattern.
Autosave name is now just another setter.
- `WebView` no longer has a backing `View` by default, so implementors
need to handle that on their own.
- Beginning to wrap `NSFileManager`, which is kind of important given
that this supports both Sandboxed and non-Sandboxed apps.
- Documentation work ongoing.
