HTML Reporter: Increase contrast and use richer colors overall

Tweak our colors away from the semi-greyish colors we had before,
toward more dark/saturated or bright colors.

Also reduce the overall number of distinct colors, reusing the same
ones more often.

* Change most uses of black (`#000000`) to `#0D3349`, which is the
  very dark blue we already used for the `#qunit-header` background.

* Change text in `#qunit .pass` from `#528CE0` to `#2F68DA`,
  this is more saturated and appears darker. I also moved its hue
  slightly from cyan-blue, more toward blue-violet.

* Change the text color for `#qunit-testresult` from `#3B81AF` to
  the same dark blue as used for module names, `#366097`. The color
  previously used here was a medium blue that we didn't use for any
  other text.

* Change the Rerun link from the near-invisible `#C2CCD1` to instead
  inherit the text color of `#qunit .pass` or `#qunit .fail`, e.g.
  `#2F68DA`. Also, to make it still stand out as special, add an
  underline. It retains its liberal padding for easy clickability.

Clean up:

* Remove unused color value for `#qunit-header`. Instead set it to that
  of `#qunit-header a` (it only contains a link), and let the latter
  inherit this color.

* Replace redundant `#qunit-tests .fail .test-name` and
  and `#qunit-tests .fail .module-name ` styles.

Ref #1427.

src/qunit.css

@@ -68,7 +68,7 @@
 #qunit-header {
 	padding: 0.5em 0 0.5em 1em;
 
-	color: #8699A4;
+	color: #C2CCD1;
 	background-color: #0D3349;
 
 	font-size: 1.5em;
@@ -80,7 +80,7 @@
 
 #qunit-header a {
 	text-decoration: none;
-	color: #C2CCD1;
+	color: inherit;
 }
 
 #qunit-header a:hover,
@@ -179,7 +179,7 @@
 	border: 1px solid #D3D3D3;
 	border-top: none;
 	border-radius: 0 0 .25em .25em;
-	color: #000;
+	color: #0D3349;
 	background-color: #F5F5F5;
 	z-index: 99;
 }
@@ -191,8 +191,8 @@
 
 #qunit-modulefilter-dropdown .clickable.checked {
 	font-weight: bold;
-	color: #000;
-	background-color: #D2E0E6;
+	color: #0D3349;
+	background-color: #E2F0F7;
 }
 
 #qunit-modulefilter-dropdown .clickable:hover {
@@ -296,17 +296,12 @@
 
 #qunit-tests li a {
 	padding: 0.5em;
-	color: #C2CCD1;
-	text-decoration: none;
-}
-
-#qunit-tests li p a {
-	padding: 0.25em;
-	color: #6B6464;
+	color: inherit;
+	text-decoration: underline;
 }
 #qunit-tests li a:hover,
 #qunit-tests li a:focus {
-	color: #000;
+	color: #0D3349;
 }
 
 #qunit-tests li .runtime {
@@ -366,7 +361,7 @@
 
 /*** Test Counts */
 
-#qunit-tests b.counts                       { color: #000; }
+#qunit-tests b.counts                       { color: #0D3349; }
 #qunit-tests b.passed                       { color: #5E740B; }
 #qunit-tests b.failed                       { color: #710909; }
 
@@ -379,22 +374,34 @@
 
 /*** Passing Styles */
 
+
+#qunit-tests .pass {
+	color: #2F68DA;
+	background-color: #E2F0F7;
+}
+
+#qunit-tests .pass .test-name {
+	color: #366097;
+}
+
 #qunit-tests li li.pass {
 	color: #3C510C;
 	background-color: #FFF;
 	border-left: 10px solid #C6E746;
 }
 
-#qunit-tests .pass                          { color: #528CE0; background-color: #D2E0E6; }
-#qunit-tests .pass .test-name               { color: #366097; }
-
 #qunit-tests .pass .test-actual,
 #qunit-tests .pass .test-expected           { color: #999; }
 
 #qunit-banner.qunit-pass                    { background-color: #C6E746; }
 
 /*** Failing Styles */
 
+#qunit-tests .fail {
+	color: #000;
+	background-color: #EE5757;
+}
+
 #qunit-tests li li.fail {
 	color: #710909;
 	background-color: #FFF;
@@ -406,10 +413,6 @@
 	border-radius: 0 0 5px 5px;
 }
 
-#qunit-tests .fail                          { color: #000; background-color: #EE5757; }
-#qunit-tests .fail .test-name,
-#qunit-tests .fail .module-name             { color: #000; }
-
 #qunit-tests .fail .test-actual             { color: #EE5757; }
 #qunit-tests .fail .test-expected           { color: #008000; }
 
@@ -442,8 +445,8 @@
 /** Result */
 
 #qunit-testresult {
-	color: #2B81AF;
-	background-color: #D2E0E6;
+	color: #366097;
+	background-color: #E2F0F7;
 
 	border-bottom: 1px solid #FFF;
 }