Refactor SBF creation to allow creating without restoring existing filters
Refactor SBF creation to allow creating without restoring existing filters

armon/bloomd,armon/bloomd,mcanthony/bloomd,mcanthony/bloomd,jedisct1/bloomd,armon/bloomd,jedisct1/bloomd,jedisct1/bloomd,jedisct1/bloomd,mcanthony/bloomd