Bump Kapua version to 1.1.5

Change-Id: Ief33610407f0f92c7aba2c7da93183cfa608987a
Signed-off-by: Claudio Mezzasalma <claudio.mezzasalma@eurotech.com>
diff --git a/navbar.php b/navbar.php
index 60a3e53..7164fde 100644
--- a/navbar.php
+++ b/navbar.php
@@ -10,6 +10,6 @@
 <div class="newsticker-container">
   <span class="newsticker-header">Latest News</span>
   <span class="marquee">
-    31/03/2020 - <a href="https://github.com/eclipse/kapua/releases/tag/1.1.4">Kapua 1.1.4 has been released!</a>
+    09/04/2020 - <a href="https://github.com/eclipse/kapua/releases/tag/1.1.5">Kapua 1.1.5 has been released!</a>
   </span>
 </div>