Fix large SVG previews when using SVG provider
Fix large SVG previews when using SVG provider

Fix for #63
leftees/galleryplus,setnes/gallery,owncloud/galleryplus,efueger/galleryplus,imjalpreet/gallery,setnes/gallery,interfasys/galleryplus,viraj96/gallery,IATkachenko/gallery,owncloud/gallery,leftees/galleryplus,interfasys/galleryplus,tahaalibra/gallery,efueger/galleryplus,owncloud/galleryplus,owncloud/gallery,viraj96/gallery,owncloud/gallery,IATkachenko/gallery,patman15/galleryplus,interfasys/galleryplus,tahaalibra/gallery,patman15/galleryplus,setnes/galleryplus,setnes/gallery,patman15/galleryplus,tahaalibra/gallery,owncloud/galleryplus,desaintmartin/gallery,setnes/galleryplus,leftees/galleryplus,viraj96/gallery,desaintmartin/gallery,setnes/galleryplus,imjalpreet/gallery,imjalpreet/gallery,desaintmartin/gallery,IATkachenko/gallery