Handle ./ paths in the browser when relative correctly. Fixes less#1238

Author: lukeapage

lib/less/browser.js

@@ -223,6 +223,14 @@ function extractUrlParts(url, baseUrl) {
     if (urlParts[3]) {
         directories = urlParts[3].replace("\\", "/").split("/");
 
+        // extract out . before .. so .. doesn't absorb a non-directory
+        for(i = 0; i < directories.length; i++) {
+            if (directories[i] === ".") {
+                directories.splice(i, 1);
+                i -= 1;
+            }
+        }
+
         for(i = 0; i < directories.length; i++) {
             if (directories[i] === ".." && i > 0) {
                 directories.splice(i-1, 2);

test/browser/less/relative-urls/urls.less

@@ -1,4 +1,4 @@
-@import "../imports/urls.less";
+@import ".././imports/urls.less";
 @import "http://localhost:8081/browser/less/imports/urls2.less";
 @font-face {
   src: url(http://github.com/%3Cspan%20class=%22pl-s%22%3E%3Cspan%20class=%22pl-pds%22%3E"%3C/span%3E/fonts/garamond-pro.ttf%3Cspan%20class=%22pl-pds%22%3E"%3C/span%3E%3C/span%3E);