Remove unused tone parameter from EffectsBlit
Don't track state which isn't stored in the effects bitmap (zoom, rotation)
Refactor EffectsBlit
Add opacity handling to TransformBlit
Add scale handling to WaverBlit
Change EffectsBlit methods to take origin position
Remove unused Bitmap::Resample method
Merge pull request #376 from glynnc/master

Refactor EffectsBlit
ShowPicture/MovePicture fixes
Change waver parameters to more closely match RPG_RT
Merge pull request #377 from glynnc/master

Picture fixes
Rename effect_speed/effect2_speed to current_effect/finish_effect
Merge pull request #378 from glynnc/master

Rename effect_speed/effect2_speed to current_effect/finish_effect
Picture fixes
Don't replicate 2k MovePicture "bug" in 2k3 mode
Don't reset rotation angle or waver phase when changing speed/depth
Merge pull request #379 from glynnc/master

Picture fixes