Merge branch 'release/v0.4.0' into develop

Author: jonathanpallant

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "neotron-common-bios"
-version = "0.4.0-alpha"
+version = "0.4.0"
 authors = ["Jonathan 'theJPster' Pallant <[email protected]>"]
 edition = "2018"
 description = "Common BIOS code and API for all Neotron systems."

README.md

@@ -41,6 +41,10 @@ dual licensed as above, without any additional terms or conditions.
 
 ### Unreleased Changes
 
+* None
+
+### v0.4.0
+
 * Changed `memory_get_region` to return a `MemoryRegion`
 * Changed `video_set_framebuffer` to take a `*const u8` not `*mut u8` - as the
   BIOS doesn't change video RAM.