Add the last date the list was updated/changed and not only last time an update was launched

[lordraiden]

Problem Description

Right now when you have lot of lists is hard to know which of them are no longer being updated.

Proposed Solution

Add the last date the list was changed and not only last time an update was launched

[lordraiden]

This is easy to implement and is useful to detect dead feeds

[sjhgvr]

Agree. Currently all "Last time updated" times are the same for each list (time after the Check For Updates-button has pressed).
This makes no sense.

Imo it should be like this:

• Next to "Check for updates"-button a time should be displayed (This should be the time of the last update check, either by automated update, or manually pressing that button.)
• With each list, the actual time of last change to that particular list*

* - Extract "TimeUpdated", "Last modified", "Last updated", "Last update", "Updated" - info, from the top of the downloaded file. (When available)
- HTTP Last-modified header? (Can be wrong)
- Use file-mod-time from the local file. If the downloaded file doesn't match the local file (thus was changed), update the mod time. If not, leave the file alone. (Last time updated will not change)