empty options by default
travis files
development dependency on rspec
specs
silence output in specs
specs for fork and nested fork run
exec instead of system in bin
rewrote (no control fork, using setpgrp to intercept INT in main fork, …)
replaced spec with cucumber features
sys-proctable does not unify fields, use paid, perp or ppid
check that there is inner process before interrupt and none after killing all children
travis status image
Merge branch 'rerere'
v0.2.0