improve devel call graph
use forked jenkinsapi to configure views to use regex instead of explicit list of jobs
skip binary job when package is not yet in cache
skip default maintainers when package is not yet in cache
only reconfigure jobs if necessary, fix multiple dynamic recipients
improve job trigger checks
set LANG env
Refactor release_job.py by introducing BuildTarget and OSTarget.
Start to refactor configure_release_job by introducing JobValidationError.
Refactor release_job.py.
Replace all hardcoded references to https://github.com/ros-infrastructure/ros_buildfarm.git with the appropriate variables.