CXX-322 Deprecate DropDups
minor: fix typo in comment
CXX-337 Backport server r2.7.5..r2.7.6
minor: use INADDR_LOOPBACK instead of INADDR_ANY
CXX-208 Remove sorter artifacts from BSONObj
CXX-208 Remove unused html facilities
minor: fix some alphabetization nits
CXX-208 Remove some non-user facing headers from published list

Also, as a side effect, fixes CXX-43
CXX-134 Debug builds don't affect interface
CXX-295 Allow count to work with query hints