v0.6.0

Fixed Bimage_display.Window.mouse_position
Link against libOpenImageIO_Util
Added Expr.prepare

v0.5.0

Removed Bimage_unix.Thread.Filter
Renamed Bimage_unix.{Data_unix,Image_unix}.create_mmap to mmap
Removed Filter.Make, FILTER and bimage-lwt

v0.4

Added let* and let+ operators
Added Window.window
Fix type in Bimage_display

v0.3.1

More aggressive image type checking in bimage-display to fix possible segmentation faults

v0.3.0

Overhaul of Color and Type
Added FILTER/Filter
Added Bimage_io and Bimage_lwt

v0.2.1

Add Func Expr
Rewrite ops as exprs
Update stb-image/stb-image-write

v0.1.1

Update to GTK3
Fix tests and examples