SERVER-7174 Implement $inc on new update framework
SERVER-6400 rename Matcher MatcherOld so switching is small
SERVER-6400: make hasExistsFalse part of Mather interface
SERVER-6400 new version of hasExistsFalse
SERVER-6400: prep to have both MatcherOld and Matcher2 in the code base
SERVER-6400: move CoveredIndexMatcher declaration to its own file
SERVER-7174 Add support for binary 'and' and 'or' to SafeNum
SERVER-7174 Inline trivial methods of SafeNum consistently into inline header
Add non-operator variants of bitAnd and bitOr to SafeNum
Visual Studio -- add new files
Be more explicit about types in SafeNum test
Whitespace -- tabs to spaces
SERVER-9474 always run through the entire batch-building loop at least once per batch

Because we now run through the loop once with an empty op queue, we will always
do the stuff in "occasionally check some things" at least once per batch.  This
fixes SERVER-9474, where if you had a steady stream of writes, your node in
RECOVERING would never transition to SECONDARY until you caught up completely.
SERVER-9421 do not kill index builds synchronously, to prevent deadlocks

No changes were necessary to the index builder itself; by the time it updates
its curop to reflect the fact that it's an index build, it already has the DB
write lock.  So the only time we can be killed is when we yield.
Extra debugging info for SERVER-9231
SERVER-9072 KeyRange in range_arithmetic.h
SERVER-9072 fix tests to use KeyRange
SERVER-9546: abort M/R if DBClientCursor returns a $err