[RELEASE] Released version 1.5.14

Released version 1.5.14 with the following main changes :
    - BUILD/MINOR: tools: rename popcount to my_popcountl
    - BUG/MAJOR: buffers: make the buffer_slow_realign() function respect output data
diff --git a/VERDATE b/VERDATE
index 098ce45..27c7b79 100644
--- a/VERDATE
+++ b/VERDATE
@@ -1,2 +1,2 @@
 $Format:%ci$
-2015/06/23
+2015/07/02