CXX-1056 Temporarily add -Wno-error=deprecated-declarations to compile
CXX-1056 Temporarily add -Wno-error=deprecated-declarations to compile

This is necessary to work around the fact that the driver currently
calls into deprecated libbson functionality (see CXX-1226 for
details).  "-Wno-error=deprecated-declarations" will be removed as
part of the resolution of CXX-1056.

mongodb/mongo-cxx-driver,acmorrow/mongo-cxx-driver,mongodb/mongo-cxx-driver,mongodb/mongo-cxx-driver,xdg/mongo-cxx-driver,acmorrow/mongo-cxx-driver,mongodb/mongo-cxx-driver,acmorrow/mongo-cxx-driver,acmorrow/mongo-cxx-driver,xdg/mongo-cxx-driver,xdg/mongo-cxx-driver,xdg/mongo-cxx-driver