Translation update (it)

Translation update (it)

This avoids treating double slashes as single line comments in CSS when
they are used in a filter or content string.

closes #638

Translation update (pl)

That commit did not test what it actually made for. Handling protocol
relative URLs in CSS.

Fixes #694

Translation update (nl)

Translation update (it)

Translation update (nl)

Translation update (tr)

Translation update (zh)

Translation update (ja)

Translation update (nl)

Translation update (ka)

Translation update (nl)

Translation update (ka)

Translation update (de)