rawConnectionModifySocket #71
Re-export applyCheckStatus #73
cacheRequestBody (incomplete) #74
Try flushing request headers for #74
Revert "cacheRequestBody (incomplete) #74"

This reverts commit ef1a9df671de0f279228c7a6ced76c8a27852ec6.
Version bump
Support additional headers in multipart request parts
Export part member accessors
Fix incorrect Show instance for Part.
Merge pull request #77 from paf31/part-headers

Part Headers
Version bump
Upper bound bump
Improved docs on defaultManagerSettings
Remove deprecated dep
Prompt cleanup for http call #78
Version bumps
Historied response API #79
Fix the `MultipartFormData` example

It's now updated for the move from `http-conduit` and I assume from
other changes in this package. This isn't anything essential, but it's
nice to keep things up-to-date.
Merge pull request #80 from yamadapc/master

Fix the `MultipartFormData` example
Let reaper thread go to sleep #70