Various dragon shape things

[Yune]

1) Weapons only merge into one of its three natural weapons instead of all three.
2) Gloves don't merge at all, even things like +4 dex on them.
3) It doesn't seem possible to open monster chests while a dragon.

I tested red and blue dragon shape.

[Yune]

Thanks for fixing 2 and 3 on the list! Probably the easiest way to fix 1 is to figure out which of the attacks the weapon currently merges into, then get rid of the other 2 attacks from the shapes. Also I noticed that shatter doesn't seem to merge, not sure if this is also an issue with other on-hits like elf blade.