SERVER-15179 Auth upgrade from MONGODB-CR -> SCRAM-SHA-1
SERVER-15177 Use native SCRAM-SHA-1 for enterprise client
SERVER-7596 Removed trailing whitespaces
SERVER-15187 Fix compile error in RocksDB

An earlier commit, 0b167545b6e6a0f8c193d1aab8e094256fc8fa16,
added a parameter in the storage engine interface, but I missed
some uses in RocksDB.

Closes #778

Signed-off-by: Benety Goh <benety@mongodb.com>
SERVER-15281 UnorderedFastKeyTable<>::erase() correctly update _size
Merge with upstream/master.