CHOP-599: if build.sh creates summary.json, package it with viewer.

Recent versions of the viewer's build-dependent build.sh create and upload a
summary.json file in the top level of the source repository checkout. Bundle
that into the viewer installer. This is the one file that contains the
viewer's version.

indra/newview/viewer_manifest.py

@@ -114,6 +114,16 @@ def construct(self):
             # Files in the newview/ directory
             self.path("gpu_table.txt")
 
+            # The summary.json file gets left in the base checkout dir by
+            # build.sh. It's only created for a build.sh build, therefore we
+            # have to check whether it exists.  :-P
+            summary_json = "summary.json"
+            summary_json_path = os.path.join(os.pardir, os.pardir, summary_json)
+            if os.path.exists(os.path.join(self.get_src_prefix(), summary_json_path)):
+                self.path(summary_json_path, summary_json)
+            else:
+                print "No %s" % os.path.join(self.get_src_prefix(), summary_json_path)
+
     def login_channel(self):
         """Channel reported for login and upgrade purposes ONLY;
         used for A/B testing"""