Replaced removeUnusedGrads with a more generic removeUnusedDefElems to remove unused filters, markers, etc
Replaced removeUnusedGrads with a more generic removeUnusedDefElems to remove unused filters, markers, etc
kahunamoore/svg-edit,eueung/svg-edit-mirror,kahunamoore/svg-edit,yushiro/svg-edit,yushiro/svg-edit,yushiro/svg-edit,kahunamoore/svg-edit,eueung/svg-edit-mirror,eueung/svg-edit-mirror,eueung/svg-edit-mirror,yushiro/svg-edit,kahunamoore/svg-edit