Hiding measuring button if not mesh, dont zip if exporting to laz, updating Export XXX button based on the current context, fixed always blending texture/color on not visualization mode

app/android/jni/point_cloud_drawable.cpp

@@ -265,7 +265,7 @@ const std::string kTextureMeshBlendingFragmentShader =
 	"varying float vLightWeighting;\n"
 	""
     "void main() {\n"
-	"  vec4 textureColor = texture2D(uTexture, vTexCoord) * vec4(vColor.z, vColor.y, vColor.x, 1.0);\n"
+	"  vec4 textureColor = texture2D(uTexture, vTexCoord);\n"
     "  float alpha = 1.0;\n"
 	"  vec2 coord = uScreenScale * gl_FragCoord.xy;\n;"
 	"  vec4 depthPacked = texture2D(uDepthTexture, coord);\n"

app/android/jni/scene.cpp

@@ -93,7 +93,7 @@ Scene::Scene() :
 		lighting_(false),
 		backfaceCulling_(true),
 		wireFrame_(false),
-		textureColorSeamsHidden_(false),
+		textureColorSeamsHidden_(true),
 		r_(0.0f),
 		g_(0.0f),
 		b_(0.0f),