WFU-3317: cross reference mongo-AB working
WFU-3317: Log args in DB but dont send them to AB
jrouge/WFU-3317/Prevent_senstitive_data_from_appearing_in_Airbrake_backtrace_logs_aka_AB_episode_7
WFU-3317: passed black lists as callbacks to avoid building them for every request
WFU-3317: review comments + stripping low ascii
Merge pull request #16 from Work4Labs/jrouge/WFU-3317/Prevent_senstitive_data_from_appearing_in_Airbrake_backtrace_logs_aka_AB_episode_7

Jrouge/wfu 3317/prevent senstitive data from appearing in airbrake backtrace logs aka ab episode 7