vhost-plugin: switch from rewrite back to proxypass

Switch the primary traffic proxy for the vhost frontend plugin.
There are still other RewriteRule's that do the setting of
variables, etc.
Cleaning up cuc tags
Web console: improves error details on non-recoverable errors (e.g. http 422, etc)
Merge pull request #4896 from danmcp/master

Merged by openshift-bot
fix logshifter version number format
bump_minor_versions for sprint 42
Adding inactive vs active failure tracking
Merge pull request #4897 from fabianofranz/dev/155b

Merged by openshift-bot
Merge pull request #4898 from danmcp/master

Merged by openshift-bot
Adding additional gear extended queue
Merge pull request #4899 from danmcp/master

Merged by openshift-bot
Merge pull request #4900 from rajatchopra/master

Merged by openshift-bot
Append .log to file writer filenames

Use a .log suffix for filenames generated by the file writer.

Improve error handling in the CLI.
Rebalancing tests
Updating cartridge versions
Merge pull request #4906 from ironcladlou/logshifter/filenames

Merged by openshift-bot
Switch jenkins update url to use https to avoid mixed mode blocking in browsers
Merge pull request #4910 from jhadvig/latest_versions_master

Merged by openshift-bot
Merge pull request #4908 from danmcp/master

Merged by openshift-bot
Use NodeLogger in MCollective agent code

Send log messages originating from the MCollective agent to
NodeLogger, as these logs are considered platform events.

Only things related to MCollective internals and the agent API should
flow into the MCollective log.