fix crash when printing inbound regression status and there is no revision left
Merge pull request #140 from parkouss/print_inbound_regression_progress_fix

fix crash when printing inbound regression status and there is no revision left
mozregression 0.30
refactor InboundBuildData to create a base BuildData class
make nightly regression hunting works with BuildData logic
add new modules fetch_configs and launchers
use launchers and fetch_configs for nightly regression
remove completely runinbound/runnightly logic