more stable build - cordova often crashes, so retry

cordova/makefile.am

@@ -20,12 +20,12 @@ ${ANDROID_SRC}:
 	      chmod -R u+w "$${file}" ); \
 	done
 	if [ "$$(whoami)" != "root" ]; then \
-	  cordova build --debug; \
+	  cordova build --debug || cordova build --debug; \
 	fi
 
 ${ANDROID}: ${ANDROID_SRC}
 	if [ "$$(whoami)" != "root" ]; then \
-	  mv $< $@; \
+	  cp $< $@; \
 	fi
 
 clean-local: