Added global alerts.

Author: Cherna

lib/alerts/demo.jade

@@ -32,3 +32,19 @@
     button.btn.btn-sm.btn-warning Add
     button.btn.btn-sm.btn-warning Edit
     button.btn.btn-sm.btn-warning Delete
+
+.alert.alert-global.alert-success
+  strong Well done!
+  |  You successfully read this important <a href="https://auth0.com/">alert link</a> message.
+    
+.alert.alert-global.alert-info
+  strong Heads up!
+  |  This alert needs your <a href="https://auth0.com/">alert link</a>, but it's not super important.
+  
+.alert.alert-global.alert-warning
+  strong Warning!
+  |  Better check yourself, you're not <a href="https://auth0.com/">alert link</a> looking too good.
+
+.alert.alert-global.alert-danger
+  strong Oh snap!
+  |  Change a few things up and try submitting again. <a href="https://auth0.com/">alert link</a>.

lib/alerts/index.styl

@@ -3,6 +3,7 @@
 // --------------------------------------------------
 
 $alert-padding ?=             15px
+$alert-wide-padding ?=        10px
 $alert-border-radius ?=       $border-radius-base
 $alert-link-font-weight ?=    bold
 
@@ -145,3 +146,8 @@ $alert-danger-border ?=       $state-danger-border
 
   a
     border-color: rgba(darken($bg-color-error, 50%), 0.4)
+
+.alert-global
+  border-radius 0
+  padding $alert-wide-padding
+  text-align center