make the regression tests use the proper cache and add --win support to use wine for regression test
make the regression tests use the proper cache and add --win support to use wine for regression test

Ignore-this: f875fb721108b7e531d4e6498ccc5152

darcs-hash:20100711064224-1a7c6-411480c073135c34cb1052c9a3291d1bff3b7f98

jimcrayne/jhc,jimcrayne/jhc,jimcrayne/jhc,jimcrayne/jhc