iss #22: fetch repos with github client that jush work (without timeouts, cache, unittests ...)
iss #22: update stubs config, fix type param, add dev run scripts & config
iss #22: hashable AccountSettings
iss #22: cachable RepositoriesFetcher (with some multithread issues)
iss #22: fix multithread issues in RepositoriesFetcher
iss #22: custom UserAgent header
iss #22: /repositories json format
iss #22: POST /github/reload