add ZeroDivisionError exception to avoid fatal error on calculating g_stat
Concept Code
Fix testing to have no default config file
Type convertions from enviroment strings
Merge branch 'no-yaml' of https://github.com/CypherSystems/sixpack into CypherSystems-no-yaml
Support settings via env variables

closes #98
Merge branch 'master' of https://github.com/hsinhoyeh/sixpack into develop
revisit traffic distribution/fraction

closes #99
Merge pull request #100 from seatgeek/traffic-dist-refactor

revisit traffic distribution/fraction
Document multi-armed bandit

Closes #89
[WEB] export should respect kpi
Merge branch 'develop'
[DOCS] add CHANGES.rst