feat(JobExecutor): a current job will only run 2 calls at a time (#382)
feat(JobExecutor): a current job will only run 2 calls at a time (#382)

Fixes vatesfr/xo-web#915
lmcro/xo-web,vatesfr/xo-web,vatesfr/xo-web,lmcro/xo-web,lmcro/xo-web