Use author date to be consistent with other tools (fixes #919)

James Moger

2015-09-18 a592329a82d0a85d33abcc63f08df20b79e8e4f7

 src/main/java/com/gitblit/utils/JSoupXssFilter.java

@@ -73,7 +73,7 @@
                "sub", "sup", "table", "tbody", "td", "tfoot", "th", "thead", "tr", "tt", "u",
                "ul", "var")

        .addAttributes("a", "class", "href", "style", "title")
        .addAttributes("a", "class", "href", "style", "target", "title")
        .addAttributes("blockquote", "cite")
        .addAttributes("col", "span", "width")
        .addAttributes("colgroup", "span", "width")