CXX-254 Remove reference to deleted SConscript file 

BUMP legacy-0.10.0 

CXX-176 implement nToReturn Implemented nToReturn with actual limit semantics.

CXX-197 Backport server r2.6.0..r2.6.1 changes 

CXX-205 BUMP legacy-0.8.0 

CXX-170 Backport server 2.6.0-rc3..2.6.0 changes 

CXX-151 As part of RC3 backport, drop signal_handlers. These files changed significantly between rc2 and rc3, including pulling in a new dependency on db/client.h, which we had not extracted. We def. don't want db/client.h and its transitive dependencies, but as a nice consequence of other edits in rc2..rc3, no files that we own now depend on signal_handlers.h, so we can drop the dependency, rather than needing to pull in db/client.h Note that we have already made this change on the legacy branch. The driver library shouldn't be in the business of signal handling.

CXX-126 Backport rc1..rc2 changes CXX-126 Backport relevant server repo changes applied between rc1 and rc2

Merge pull request mongodb#16 from acmorrow/CXX-77 CXX-77 Backport relevant server repo changes applied between rc0 and rc1

CXX-119 Offer STATIC_LIBMONGOCLIENT to inhibit visibility macro appli… …cation