Kerberos auth in jirashell (#590)
Kerberos auth in jirashell (#590)

* Make jirashell possible to authenticate with Kerberos

Functions process_config() and get_config() now returns tuples with four
entries instead of three as before. This could be considered as
backwards incompatible change if other code than jirashell uses them and
would expect exactly three arguments.

* Make jirashell to accept mutual_authentication option of Kerberos auth

dwmarshall/pycontribs-jira,dwmarshall/pycontribs-jira,pycontribs/jira,pycontribs/jira