Bug 1631163 - Improve version compare

[jay]

trafficstars

Prior to this change the version compare did not accurately compare development versions against release versions, and as a result dev users may have been shown an erroneous upgrade notice in the console or gui.

For example, dev version 4.0.5.dev8+gedaf3e9.d20200514 comes after release version 4.0.4, and now there is no notice to upgrade to the latter.

Ref: https://bugzilla.mozilla.org/show_bug.cgi?id=1631163

Closes #xxx

---

Only thing I'm unsure about is I think packaging comes standard

/cc @wlach

[jay]

Sure I can take a look this week. I think I had some problem running testing due to missing mock or something.

[jay]

I think I had some problem running testing due to missing mock or something.

I haven't solved the mock problem. I posted an update in the bug thread. I will make an attempt to fix the CI errors, they look legit, but I may not get it right the first time since I don't have the ability to run the tests.