Milo buildbot builder page: Add pagnation with cursors.

milo/appengine/frontend/templates/pages/builder.html

Index: milo/appengine/frontend/templates/pages/builder.html
diff --git a/milo/appengine/frontend/templates/pages/builder.html b/milo/appengine/frontend/templates/pages/builder.html
index 1e53a952a84fd5426e4615b1aff1abfe1b698512..5ec563a1c5924aa40fe61f4d99fb5e5b7fd0c3c3 100644
--- a/milo/appengine/frontend/templates/pages/builder.html
+++ b/milo/appengine/frontend/templates/pages/builder.html
@@ -119,12 +119,14 @@
   <h2>No Recent Builds</h2>
 {{ end }}
 
+{{ if .Builder.PrevCursor }}<a href="{{ pagedURL .Request 0 .Builder.PrevCursor }}">Prev</a>{{ end }}
 (Show:
-<a href=".">default</a>
-<a href="?limit=25">25</a>
-<a href="?limit=50">50</a>
-<a href="?limit=100">100</a>
-<a href="?limit=200">200</a>
+<a href="{{ pagedURL .Request 0 "" }}">default</a>
+<a href="{{ pagedURL .Request 25 "" }}">25</a>
+<a href="{{ pagedURL .Request 50 "" }}">50</a>
+<a href="{{ pagedURL .Request 100 "" }}">100</a>
+<a href="{{ pagedURL .Request 200 "" }}">200</a>
 )
+{{ if .Builder.NextCursor }}<a href="{{ pagedURL .Request 0 .Builder.NextCursor}}">Next</a>{{ end }}
 
 {{end}}