Auto merge of #1741 - markcatley:svg-fingerprinting, r=jtgeibel
Auto merge of #1741 - markcatley:svg-fingerprinting, r=jtgeibel

Fingerprinting SVGs

In the production build all the SVGs are copied into dist/assets without fingerprints. All other assets have fingerprints. Since all files in dist/assets are served with far-future cache headers there would be cache issues if the files were ever updated. This is not major issue as these files are not used in normal operations.

Closes #1575

rust-lang/crates.io,rust-lang/crates.io,rust-lang/crates.io,rust-lang/crates.io