set nofollow on ?doc links

google keeps trying to read binaries as text, maybe now it won't

README.md

@@ -1837,7 +1837,7 @@ tell search engines you don't wanna be indexed,  either using the good old [robo
 * volflag `[...]:c,norobots` does the same thing for that single volume
 * volflag `[...]:c,robots` ALLOWS search-engine crawling for that volume, even if `--no-robots` is set globally
 
-also, `--force-js` disables the plain HTML folder listing, making things harder to parse for search engines
+also, `--force-js` disables the plain HTML folder listing, making things harder to parse for *some* search engines -- note that crawlers which understand javascript (such as google) will not be affected
 
 
 ## themes

copyparty/httpcli.py

@@ -6078,7 +6078,7 @@ class HttpCli(object):
                         quotep(href),
                     )
             elif fn in hist:
-                margin = '<a href="%s.hist/%s">#%s</a>' % (
+                margin = '<a href="%s.hist/%s" rel="nofollow">#%s</a>' % (
                     base,
                     html_escape(hist[fn][2], quot=True, crlf=True),
                     hist[fn][0],

copyparty/web/browser.js

@@ -5774,7 +5774,7 @@ var showfile = (function () {
 
 			td.innerHTML = '<a href="#" id="t' +
 				link.id + '" class="doc bri" hl="' +
-				link.id + '">-txt-</a>';
+				link.id + '" rel="nofollow">-txt-</a>';
 
 			td.getElementsByTagName('a')[0].setAttribute('href', '?doc=' + fn);
 		}
@@ -7936,7 +7936,7 @@ var treectl = (function () {
 
 			if (tn.lead == '-')
 				tn.lead = '<a href="?doc=' + bhref + '" id="t' + id +
-					'" class="doc' + (lang ? ' bri' : '') +
+					'" rel="nofollow" class="doc' + (lang ? ' bri' : '') +
 					'" hl="' + id + '" name="' + hname + '">-txt-</a>';
 
 			var cl = /\.PARTIAL$/.exec(fname) ? ' class="fade"' : '',