fixed art layers 1.3.4
Merge branch 'master' of https://github.com/ifdm/siphon

Conflicts:

Assets/Graphics/Art/level-one-environment/midground/BRANCH4squiggly_819x
369.png.meta

Assets/Graphics/Art/level-one-environment/midground/backgroundthintree1_
2000x4000.png.meta

Assets/Graphics/Art/level-one-environment/midground/branch1_1150x172.png
.meta

Assets/Graphics/Art/level-one-environment/midground/branch2_1151x342.png
.meta

Assets/Graphics/Art/level-one-environment/midground/branch3_1131x178.png
.meta

Assets/Graphics/Art/level-one-environment/midground/branchnubcc1_443x201
.png.meta

Assets/Graphics/Art/level-one-environment/midground/foregroundthintree1_
2000x4000.png.meta

Assets/Graphics/Art/level-one-environment/midground/insideofsplittree1_7
15x1256.png.meta

Assets/Graphics/Art/level-one-environment/midground/redobluetree1_2000x3
000.png.meta

Assets/Graphics/Art/level-one-environment/midground/ruinedtreemidground1
_2000x3000.png.meta

Assets/Graphics/Art/level-one-environment/midground/superbushderp1_1880x
1539.png.meta

Assets/Graphics/Art/level-one-environment/midground/superthintree1_2000x
4000.png.meta

Assets/Graphics/Art/level-one-environment/midground/thinnertree1_2000x40
00.png.meta

Assets/Graphics/Art/level-one-environment/midground/thinnertreebroke1_20
00x4000.png.meta