Change up link alerts

* No more children selectors to set all links in alerts as a special color because buttons and more wrongly inherited color
* Adds .alert-link for easy styling in any alert

less/alerts.less

@@ -24,9 +24,8 @@
   hr {
     border-top-color: darken(@alert-border, 5%);
   }
-  // Inherit color for immediate links and bolden them some
-  > a,
-  > p > a {
+  // Provide class for links that match alerts
+  .alert-link {
     font-weight: 500;
     color: darken(@alert-text, 10%);
   }
@@ -50,8 +49,7 @@
   hr {
     border-top-color: darken(@alert-success-border, 5%);
   }
-  > a,
-  > p > a {
+  .alert-link {
     color: darken(@alert-success-text, 10%);
   }
 }
@@ -62,8 +60,7 @@
   hr {
     border-top-color: darken(@alert-danger-border, 5%);
   }
-  > a,
-  > p > a {
+  .alert-link {
     color: darken(@alert-danger-text, 10%);
   }
 }
@@ -74,8 +71,7 @@
   hr {
     border-top-color: darken(@alert-info-border, 5%);
   }
-  > a,
-  > p > a {
+  .alert-link {
     color: darken(@alert-info-text, 10%);
   }
 }