v0.8.4

• [#221] fix tests which were failing in Py3.4 and 3.7 [Daniel Moore]
• [#220] Replace stale connections pulled from idle pools [Kaivan Kamali]
• [#3] tests failing on Python3 unicode defaults [Daniel Moore]
• [#214] store/load rules as utf-8 in files [Daniel Moore]
• [#211] set and report application name to server [Daniel Moore]
• [#156] skip ssh/pam login tests if user doesn't exist [Daniel Moore]
• [#209] pam/ssl/env auth tests imported from test harness [Daniel Moore]
• [#209] store hashed PAM pw [Daniel Moore]
• [#205] Disallow PAM plaintext passwords as strong default [Daniel Moore]
• [#156] fix the PAM authentication with env json file. [Patrice Linel]
• [#207] add raw-acl permissions getter [Daniel Moore]