Updated appraisal gem files for MRI 1.8.
UploadIO insists on 3 arguments with Faraday 0.8.

This is if the first argument is a stream instead of a filename. The version of multipart_post used in Faraday 0.9 allows for the third argument too.
Stick with hash syntax for Faraday middleware syntax.

It works for both Faraday 0.8 and 0.9.
Array order is not reliable in MRI 1.8.
Longer sleeps - MRI 1.8 seems to be just a touch too slow for 0.5.
Testing calls against procs in MRI 1.8 doesn't seem to work.
Better appraisals - two for 1.8, two for 1.9, 3 versions of TS.