Trying to get the most out of the current 'shared' system

[Sönke Ludwig]

I generated some quick documentation with examples here:

http://vibed.org/temp/d-isolated-test/stdx/typecons/lock.html
http://vibed.org/temp/d-isolated-test/stdx/typecons/makeIsolated.html
http://vibed.org/temp/d-isolated-test/stdx/typecons/makeIsolatedArray.html

It does offer some nice improvements. No single cast and everything is statically checked.