add new modules fetch_configs and launchers
use launchers and fetch_configs for nightly regression
remove completely runinbound/runnightly logic
retry until we find a valid nightly build to start inbound bissection
fix regression to tests every nightly build folders for a given date
use coveralls for test coverage reporting with Travis
Merge pull request #147 from parkouss/master

use coveralls for test coverage reporting with Travis
Adds a new parameter "--list-releases"