whatsnew: Use single color for links.

Also changed to the legacy "hsl" syntax because Chrome's Inspect doesn't understand the missing % signs. And it will be needed in the help file to support IE.

whatsnew.htm

@@ -6,14 +6,12 @@
 <base href="https://jrsoftware.org/" />
 <style type="text/css">
     body         { font: calc(14rem/16)/1.5 "Segoe UI", sans-serif; color: #282828; background-color: white }
-    a[href]      { text-decoration: none }
+    a:link, a:visited { color: hsl(206, 100%, 40%); background-color: transparent; text-decoration: none }
     a[href]:hover { text-decoration: underline }
-    a:link       { color: hsl(206 100 40); background-color: transparent }
-    a:visited, a[href]:active { color: hsl(206 100 55); background-color: transparent }
     tt, pre      { font: calc(13rem/16)/calc(21rem/16) monospace; color: inherit; background-color: #f0f0f0; padding: 2px 4px; border-radius: 4px }
     pre          { line-height: normal; padding: 10px; border-radius: 6px }
     li, div.limargins { margin-top: 5px; margin-bottom: 5px }
-    div.bluehead { text-align: center; color: white; background-color: hsl(206 100 30); padding: 5px; font-weight: bold; line-height: normal }
+    div.bluehead { text-align: center; color: white; background-color: hsl(206, 100%, 30%); padding: 5px; font-weight: bold; line-height: normal }
     .date        { font-size: calc(11rem/16); font-weight: bold }
     .head1       { font-size: calc(32rem/16) }
     .head2       { font-size: calc(20rem/16) }