Fix an issue with style.ini replacements values not having relative
locations corrected, when those values are "url(...)".

Explanation:  In the change to the less css extension, variable
replacements now happen after the less/css files are processed
for correction of relative locations.
translation update
translation update
Merge pull request #429 from dokuwiki-translate/lang_update_492

Translation update (ko)
Merge pull request #428 from dokuwiki-translate/lang_update_489

Translation update (eo)
Merge pull request #421 from splitbrain/FS#2879

FS#2879, relative url() values in style.ini replacements not being adjusted