Merge pull request #2 from 7185/master

Fix image search links
Replace doublespaces in initSbiLinks with tabs
Convert short SBI links to uppercase
Disable dynamic favicon by default (performance issues)
Try to keep hovered images within the window
Add 7185 to contributors
1.35.8
Fix duplicated reverse image search links

Sometimes <canvas> elements have the "post-image" class,
so they get empty reverse image search links.
This is especially annoying if you use the "Unanimate GIFs" option.
Simply restricting the function to <img> elements solves the problem.