[astute] Add methods for download_release.
[astute] Add download_release support.
[astute] Simplify download_release. Add custom proxyReporter for it.
[astute] Add custom path_template to logparser.
[astute] Beautify code style according to comments in PR.
[astute] Fix unittests after change in ProxyReporter.
[astute] Fix password propagation for rpmcache.