Fixed a typo in a comment in both lighting and unshaded.j3md, thanks to wezrule

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10590 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core-data/Common/MatDefs/Light/Lighting.j3md

@@ -15,7 +15,7 @@ MaterialDef Phong Lighting {
         // Output alpha from the diffuse map
         Boolean UseAlpha
 
-        // Apha threshold for fragment discarding
+        // Alpha threshold for fragment discarding
         Float AlphaDiscardThreshold (AlphaTestFallOff)
 
         // Normal map is in BC5/ATI2n/LATC/3Dc compression format

engine/src/core-data/Common/MatDefs/Misc/Unshaded.j3md

@@ -16,7 +16,7 @@ MaterialDef Unshaded {
         Int NumberOfBones
         Matrix4Array BoneMatrices
 
-        // Apha threshold for fragment discarding
+        // Alpha threshold for fragment discarding
         Float AlphaDiscardThreshold (AlphaTestFallOff)
 
         //Shadows