Clean up local_entry_test.rb generated files.

Now force file generation into the test/data/generated directory where other
such files go so tests are cleaned up properly.
Clean up deflater_test.rb generated files.

Now force file generation into the test/data/generated directory where other
such files go so tests are cleaned up properly.
Clean up emptyOutDir generated file.

Now force file generation into the test/data/generated directory where other
such files go so tests are cleaned up properly.
Clean up okToDeleteMoved.txt generated file.

Now force file generation into the test/data/generated directory where other
such files go so tests are cleaned up properly.
Clean up output_stream_test.rb generated files.

Now force file generation into the test/data/generated directory where other
such files go so tests are cleaned up properly.
Clean up and disambiguate extEntry generated file.

Now force file generation into the test/data/generated directory where other
such files go so tests are cleaned up properly.
Clean up test/dummy.txt generated file.

Now force file generation into the test/data/generated directory where other
such files go so tests are cleaned up properly.
Clean up .gitignore file.

Loads of stuff in there that no longer needs ignoring.