Revert "~ Fix headers not cleared between multiple requests on same connection"

This reverts commit 42f3381fd2853612aba7b0c34119c695d2d9dd6a.
Revert "~ Ensure that temporary files are closed on HttpKeepAliveTest"

This reverts commit 176988828eaf428ee0978b3d207db156ca183363.
Revert "~ Ssl support added process to send response to client when app is ready"

This reverts commit 4acf65c9969fbe84575cd099be401a45e61d6eba.