[webif] 1.5.x

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There's a logical problem with the status display where I added the (delayed) case with too little thought.

When the programme being watched is from the timeshift buffer:

• the programme name is only correct if the delay is shorter than the length of the show so far broadcast;
• the % value shows the wrong amount through the current programme, which may also be the wrong programme.

If the status code could know the delay value, it would be possible to correct the display so that instead of

Watching (delayed) 56: That's TV (UK) - Stonehenge: The Ultimate... (16:05 - 17:55) [87%]

it would show (eg, at 17:45 today as above with delay position at 15:29)

Watching (delayed) 56: That's TV (UK) - Russian Revolution in Col... (15:05 - 16:05) [48%]

However the "obvious" way that occurred to me,

• get the file offset of "the" TSR read file descriptor
• calculate the programme and position from the corresponding .nts index file

fails at the first step lsof: WARNING: can't report offset; disregarding -o. I suppose this is because the CF Linux doesn't have /proc/fdinfo (and so we can't look there either :-().

Any other ideas? At a minimum s/t like this would be less misleading:

Watching delayed from 56: That's TV (UK) - Stonehenge: The Ultimate... (16:05 - 17:55) [87%]