post 2.6.0-rc0

Conflicts:
	src/mongo/util/version.cpp
Don't count skipped tests as successful in smoke.py

Signed-off-by: Matt Kangas <matt.kangas@mongodb.com>

Conflicts:
	buildscripts/smoke.py
omit dbadmin.js from smalloplog suite; calls CloseAllDatabases
SERVER-5455 New script to sign S3 artifacts
BUMP 2.6.0-rc1

Conflicts:
	rpm/mongo.mdv.spec
	rpm/mongodb-enterprise-unstable.spec
	rpm/mongodb-enterprise.spec
	rpm/mongodb-org-unstable.spec
	rpm/mongodb-org.spec
	src/mongo/util/version.cpp