v5.7.0

• CI improvements:

  • Don't run tests during deploy stage
  • Use VM based build job env only for pyenv envs
  • Opt-in for beta trusty image @ Travis CI
  • Be verbose when running tests (show test names)
  • Show xfail/skip details during test run

• #34: Fix _handle_no_ssl error handler calls

• #21: Fix test_conn tests:

  • Improve setup_server def in HTTP connection tests
  • Fix HTTP streaming tests
  • Fix HTTP/1.1 pipelining test under Python 3
  • Fix test_readall_or_close test
  • Fix test_No_Message_Body
  • Clarify test_598 fail reason

• #36: Add GitHub templates for PR, issue && contributing

• #27: Default HTTP Server header to Cheroot version str

• Cleanup _compat functions from server module