Things which will not be re-implemented

GZIP_POST, DEFLATE_POST

The way these are currently implemented the test has to look like this:

--POST--
Some posted content

--GZIP_POST--
1
--FILE--
etc

This isn't really necessary. In the new implementation the --GZIP_POST-- section will just contain the content to be posted and gzip'd. Same for DEFLATE_POST. This affects two tests: