Revert "Apply logging patch from 10gen."

This reverts commit 3ace9e346aadb839fc7a308c2de7f1712602c830.

Conflicts:
	src/mongo/util/version.cpp
SERVER-7958 - when an old operation has a writeback,
              make sure not to use that info in the user writeback
              just block
SERVER-7958 - make test more resilient to gle field ordering
SERVER-8097 increment writebackSince on every request but GLE
bump mongo version to 2.2.2-fs-e