[Firefox] Lazy load network.js in PdfStreamConverter.js
Merge pull request #4501 from Snuffleupagus/firefox-lazy-load-network

[Firefox] Lazy load network.js in PdfStreamConverter.js
Fixes for small colour variations in tests

https://github.com/notmasteryet/jpgjs/pull/24
Merge pull request #4517 from yurydelendik/jpgjs24

Fixes for small colour variations in tests