Bug Fix for basicpackage

[stumitchell]

Hi I have been finding that the basic-package example does not work as it should.

I have found that the package_dir directive in setup.py_tmpl is incorrect. I have removed this declaration and changed the unit_test to run $python setup.py --xxxxx

In the tmp directory rather than

$python temp_dir/setup.py --xxxxx

I have noticed that setup.py scripts in general do not behave well when not run in their directory.

Stu

PS have not checked with namespace packages yet