AI 148759: Add download page for NDK 1.5 r1.
  BUG=1790234

Automated import of CL 148759
diff --git a/tools/droiddoc/templates/assets/android-developer-docs.css b/tools/droiddoc/templates/assets/android-developer-docs.css
index a12e6d9..b463cb6 100644
--- a/tools/droiddoc/templates/assets/android-developer-docs.css
+++ b/tools/droiddoc/templates/assets/android-developer-docs.css
@@ -590,6 +590,10 @@
 p.warning {
   border-color: #aa0033;
 }
+
+p.caution {
+  border-color: #ffcf00;
+}
   
 p.warning b, p.warning strong {
   font-weight: bold;