Corrected wrong info about PNAP format...

Here we go... Fucking PNAP!!!! (*≧m≦*)
I never realized what is this... until tried to fix the gallery in Konosora...
At 1st I thought that PNGs are used for system graphics and yes it looks like PNAP is a collection of PNGs, but still it is actually packed into some shitty container.
So yeah, I was _very_ wrong when I said that support for this format is not required for translations. This is actually something similar to WIPF...