Update admonition colors

Use current Bootstrap colors for the various
admonitions to differentiate between note,
warning, and seealso admonitions more easily.

source/mahara/static/mahara.css_t

@@ -277,45 +277,62 @@ div.admonition p.last {
 div.admonition p.admonition-title {
 	display: none;
 }
+div.note,
+div.important {
+	background-color: #d1ecf1;
+	border-color: #bee5eb;
+}
 div.note:before,
 div.important:before {
   content: "\f05a\00a0";
-  color: #468847;
+  color: #0c5460;
 }
 div.note a,
 div.important a {
-  color: #3C763D;
+  color: #062c33;
 }
-div.warning:before,
 div.caution:before,
-div.attention:before,
-div.seealso:before {
+div.attention:before {
   content: "\f071\00a0";
   color: #c09853;
 }
-div.warning a,
 div.caution a,
-div.attention a,
-div.seealso a {
+div.attention a {
   color: #886B3A;
 }
+div.hint,
+div.tip,
+div.seealso {
+	background-color: #fff3cd;
+	border-color: #ffeeba;
+}
 div.hint:before,
-div.tip:before {
+div.tip:before,
+div.seealso:before {
   content: "\f0eb\00a0";
-  color: #3a87ad;
+  color: #856404;
 }
 div.hint a,
-div.tip a {
-  color: #31708F;
+div.tip a,
+div.seealso a {
+  color: #533f03;
+}
+div.warning,
+div.danger,
+div.error {
+	background-color: #f8d7da;
+	border-color: #f5c6cb;
 }
+div.warning:before,
 div.danger:before,
 div.error:before {
-  content: "\f06a\00a0";
-  color: #b94a48;
+  content: "\f071\00a0";
+  color: #721c24;
 }
+div.warning a,
 div.danger a,
 div.error a {
-  color: #A94442;
+  color: #491217;
 }
 
 tt.xref {