Feature/timeout monitor fix

[achen2401]

address https://movember.atlassian.net/browse/IRONN-248

I was not able to reproduce and am still not certain how the issue occurred but the changes here might help:

• as per suggestion from meeting today, add check for elapsed time (compared against session lifetime as configured) in timeout code before logging out user
• add appropriate defaults (e.g. session lifetime) if for some reason, not available

tested the changes in my instance, session timed out as expected at configured time

TODO

• @ivan-c rebase/switch to master before merging (git rebase HEAD~7 --onto master; PR has 7 commits)

[ivan-c]

@ivan-c TODO rebase/switch to master before merging

[ivan-c]

looks good, thanks! had a minor nitpick, but no blockers

thanks for the helpful comments!

[mcjustin]

@ivan-c Today during the weekly w/ Mo we decided to deploy this as a hotfix this week, because opt-out may be delayed until mid-next week.
It has been tested by Sie-Ce per slack.

[ivan-c]

@achen2401

I rebased this onto master for a hotfix (see PR description for git command), and changed the PR base to master

it should be ready to merge now; can you merge when you get a chance? thanks!

[achen2401]

Thank you @ivan-c It is merged.

[mcjustin]

@ivan-c Today during the weekly w/ Mo we decided to deploy this as a hotfix this week, because opt-out may be delayed until mid-next week. It has been tested by Sie-Ce per slack.

@sierramatice @achen2401 there were a couple commits Wednesday and it's not entirely clear to me... did Sie-Ce test Amy's latest refinements?

[achen2401]

@mcjustin hmm, I believe Sie-ce tested after all commits were made. Noting here that Sie-ce tested the Monday after. See Slack convo The last commit for this PR was this which occurred on Friday prior to Sie-ce's testing.