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

[David T. Lewis]

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.

Dave