don't doc or package private headers

ios/docs/install_docs.sh

@@ -17,4 +17,5 @@ appledoc \
     --project-company Mapbox \
     --create-docset \
     --company-id com.mapbox \
+    --ignore ../../include/mbgl/ios/private \
     ../../include/mbgl/ios

scripts/ios/package.sh

@@ -81,7 +81,9 @@ echo "Created ${OUTPUT}/static/lib${NAME}.a"
 
 step "Copying Headers..."
 mkdir -p "${OUTPUT}/static/Headers"
-cp -pv include/mbgl/ios/* "${OUTPUT}/static/Headers"
+for i in `ls -R include/mbgl/ios | grep -vi private`; do
+    cp -pv include/mbgl/ios/$i "${OUTPUT}/static/Headers"
+done
 
 
 # Manually create resource bundle. We don't use a GYP target here because of