[ANN][OSPP][VM] 64-bit OSProcessPlugin, XDisplayControlPlugin, AioPlugin on SM

> The OSProcessPlugin, XDisplayControlPlugin, and AioPlugin plugins are
> now updated for the 64-bit Squeak VM. They compile, run, and pass all
> OSProcess/CommandShell unit tests.
>
> Testing was done on both 32 bit Squeak and 64 bit Squeak image/VM, as
> well as on both 32 bit and 64 bit hardware (Intel and AMD hardware  
> with
> Linux). They can be built on the latest (64-bit capable) VMMaker and
> SubVersion sources, and also on older sources such as the source  
> bundles
> from Ian's web site.
>
> These are available on SqueakMap.