toy build: stats collection, updating zapx sha

Change-Id: I0aff46c55e9003099e1123f28362e9cd49661da0
Reviewed-on: https://review.couchbase.org/c/manifest/+/181266
Tested-by: <[email protected]>
Reviewed-by: <[email protected]>

Author: Thejas-bhat

toy/toy-thejas-elixir.xml

@@ -95,7 +95,7 @@
 
   <!-- Go support libraries - Bleve-supported -->
   <project name="mmap-go"          remote="blevesearch" revision="99940f54c59671cf69e10b2e4041fabce88eb9b2" path="godeps/src/github.com/blevesearch/mmap-go"/>
-  <project name="zapx"          remote="toy" revision="286bef1641393e7930975b9e93f506794db50032" path="godeps/src/github.com/blevesearch/zapx"/>
+  <project name="zapx"          remote="toy" revision="d8e96f75b78f4016bfd7bf112de694d963bfb775" path="godeps/src/github.com/blevesearch/zapx"/>
   <project name="bleve"          remote="toy" revision="950fbaa44225084ee2610eeebfd5cdebb57be083" path="godeps/src/github.com/blevesearch/bleve"/>
   <project name="zapx"          remote="toy" revision="63050c6a81dae36aade388a122076f2996c80f47" path="godeps/src/github.com/blevesearch/zapx14"/>
   <project name="zapx"          remote="toy" revision="687c4520ba855826b8a9fbc8c326359a9f7c3082" path="godeps/src/github.com/blevesearch/zapx13"/>