Utils.JiraBot.adapter.getUsers() not getting correct information in utils.coffee

[iris3th]

using jira-bot with Jira & Mattermost. using the native code, we get an error message refers for the Jira User checks.

below is the changed, working code in utils.coffee starting at row 62:

result = (users[user] for user of users when users[user].name is jira.name) if jira

please review / merge if possible.