Fixes: support svg2 href attribute

[plsnk]

Fixes: #654

[nicolaasuni]

Please try to resolve the conflicts.

[CLAassistant]

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15 out of 16 committers have signed the CLA.

:white_check_mark: remicollet
:white_check_mark: johnson361
:white_check_mark: kosmro
:white_check_mark: rubo77
:white_check_mark: bruno-farias
:white_check_mark: d-salerno
:white_check_mark: ren1244
:white_check_mark: simonbuehler
:white_check_mark: theonlytruth
:white_check_mark: nicolaasuni
:white_check_mark: survik1
:white_check_mark: mvorisek
:white_check_mark: fisharebest
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:x: Nicole Krämer

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