FakeReader: remove pointless comments

For some reason Eclipse adds these sorts of comments, but a simple
Ctrl+T in Eclipse (and similar functionality in other IDEs) will give
you the same information and more in an instant.
FakeReader: change shadowed variable name
FakeReader: remove empty, undocumented block

This avoids an Eclipse warning.
FakeReader: add support for generating SPW data

This implementation leans on XMLMockObjects, and is largely untested.
Changes after adding specification directory