update Makefile tree, status.html, years.html, template/README.md.year

We add `make clang-format` to the Makefile tree.

Add `important disclaimers about contest status` link to `status.html`.

Update `years.html` due to recent commit that fixed typo for abstract of 2011/akari.

Improve `template/README.md.year` for future IOCCC contents.

Ran `make quick_www` to perform the above.

Makefile

@@ -100,7 +100,7 @@ all:
 
 .PHONY: all alt data everything diff_orig_prog diff_prog_orig \
 	diff_alt_prog diff_prog_alt diff_orig_alt diff_alt_orig \
-	clean clobber install genpath new_year genpath_top
+	clean clobber install clang-format genpath new_year genpath_top
 
 # alternative executable
 #
@@ -994,6 +994,18 @@ install:
         done
 	@echo '=-=-=-=-= IOCCC complete make $@ =-=-=-=-='
 
+clang-format:
+	@echo '=-=-=-=-= IOCCC begin make $@ =-=-=-=-='
+	@-for i in ${YEARS}; do \
+	    if [[ -f $$i/Makefile ]]; then \
+		echo "cd $$i; make $@"; \
+		(cd $$i; make $@); \
+	    else \
+		echo "Warning: $$i/Makefile not found, skipping $$i for $@ processing" 1>&2 ; \
+	    fi; \
+        done
+	@echo '=-=-=-=-= IOCCC complete make $@ =-=-=-=-='
+
 
 #############################################################
 # NOTE: 'Don't Panic' if you don't understand the stuff below