The status_uptodate is a flag that the plugin's on-disk version and the
in-db version are in sync, that is no upgrade will be performed.
However, there can be a newer version of the plugin available. So using
the term "up-to-date" may be confusing.
In case of Moodle code itself, there is no plugin_manager like class
available so the checker class itself must be aware of versions and
actually do the checks. On the other hand, we can always rely that
version, release and maturity are always returned by the remote server.
1. This used to use a complex legacy system which was buggy.
2. It now relies on a new mod/...:addinstance capability for each module.
3. All the legacy code has been stripped out.
4. Old restriction data is upgraded by creating the necessary permission
overrides. Similarly, when old backups are restored, the old settings
are converted to be overrides.
5. The required addinstance capabilities will be added as a separate
commit.
6. There is a developer debug warning about modules that are missing the
addinstance capability, unless they are MOD_ARCHETYPE_SYSTEM mods.
Some countries do not exist any more, some currencies do not exist. Some countries (and currencies) started to exist recently. Some currency codes are changed (mistype or result of denomination).
Also I tried to keep the moodle formation of the name of the currencies. The first word is not the country name but the 'belonging-to-country', i.e. not 'Sweden Krona' but 'Swedish Krona'. For some countries it was not so easy to find the correct spelling.
And finally there were some mistakes in the list, like 'Schilling' instead of 'Shilling', 'Riyal' instead of 'Rial', etc. I used currencies spelling from ISO.
When shortanswer, numerical, calculated and calculatedsimple questions
did not have a '*' match-anything answer, then any student response that
did not match any of the teacher-given answers were classified as
'[No response]', which was not right.
This patch fixes that. Such responses are now classified as
[Did not match any answer].
While I was doing this, I noticed that the display of tolerance
intervals for numerical questions in the response analysis was horrible,
so I improved it.
