[horde] Image width and height for IMG tags

[Tero Matinlassi]

Lainaus Jan Schneider <jan at horde.org>:

> OK, we already add an empty alt attribute if there wasn't one
> specified, so
> all that was left from you patch were the fixes for the old
> Horde::img()
> syntax.

I noticed that Turba is missing these at 
templates/prefs/columnselect.inc, too.

https://mail.edu.vantaa.fi/horde-dev/turba/alt-tag.patch

-Tero

PS. Shouldn't kronolith/templates/month_head.inc be removed? There's 
kronolith/templates/month/head.inc...

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Tero Matinlassi
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