oo-diagnostics: Fix test_node_mco_log when no log

Make test_node_mco_log fail gracefully when the node mcollective log file
is absent.  Before this commit, the test would hang because it would run
a sed command with no input file provided.

This commit fixes bug 1077664.
oo-diagnostics: Drop unneeded require 'socket'

Drop a "require 'socket'" statement in the test_broker_certificate check.

This require statement was obviated in commit
9b72939f28a6d35354db74cc7464d879bbd3a81e.
oo-diagnostics: Better handle curl error

Catch and report if curl returns an error in the test_broker_certificate
check.

Previously, test_broker_certificate would ignore curl's return code, and so
errors connecting to the broker would turn up as backtraces when
test_broker_certificate would try to parse the output from curl.
oo-diagnostics: Fix comments for test_node_mco_log

Place comments with relevant code, consistently use proper case and
punctuation, and use whitespace for better logical grouping.
Merge pull request #4983 from Miciah/bug-1077664-oo-diagnostics-test_node_mco_log-fixes

Merged by openshift-bot
Use the local1 facility for Syslog trace logs

Allow trace log segregation by logging trace messages using the local1
facility.

Resolve bug: https://bugzilla.redhat.com/show_bug.cgi?id=1097745
Merge pull request #5414 from ironcladlou/syslog-facility

Merged by openshift-bot
Merge pull request #5324 from Miciah/oo-diagnostics-test_broker_certificate-fixes

Merged by openshift-bot
Add Team management UI

Limit role to view, update descriptions for roles of team members

Add delete form, improve team index styles

Refactor role descriptions into member models

Default to current role, override text for 'none' role for team

Build urls in view based on membership object

Refactor class names for clarity

Link to team creation page from typeahead when you have no teams
Add help, improve formatting
Move capability logic into model, list global teams in settings