add oninput test
update oninput to use hasEvent
convert webp lossless test to a non alpha image
shrink webp detect by a few bytes
Merge pull request #1065 from patrickkettner/noalpha-lossy-webp

shrink webp detect by a few bytes
Merge pull request #1064 from patrickkettner/noalpha-lossless-webp

convert webp lossless test to a non alpha image
Add window.crypto.getRandomValues test
Merge pull request #1076 from komachi/master

Add window.crypto.getRandomValues test
Merge pull request #1055 from patrickkettner/oninput

add oninput test