v2.4.2

ParallelTestRunner v2.4.2

Diff since v2.4.1

Merged pull requests:

• Slightly improve inferred types in runtests (#100) (@jishnub)
• Remove undefined reference to rmprocs (#101) (@giordano)
• Prefix with underscores unused local variables (#102) (@giordano)
• Remove useless workers variable (#103) (@giordano)
• Revert changes which broke reuse of workers (#105) (@giordano)
• Stop workers when there are no more tests to run (#107) (@giordano)
• Release v2.4.2 (#108) (@giordano)

Closed issues:

• Workers aren't stopped when there's no more work to do (#106)