Update points to origin/nexedi

crew

@@ -80,6 +80,8 @@ rescue Docopt::Exit => e
   exit 1
 end
 
+@origin_branch = "nexedi"
+
 @opt_keep = args["--keep"]
 @opt_verbose = args["--verbose"]
 @opt_src = args["--build-from-source"]
@@ -325,8 +327,8 @@ def update
 
   #update package lists
   Dir.chdir CREW_LIB_PATH do
-    system "git fetch origin master"
-    system "git reset --hard origin/master"
+    system "git fetch origin " + @origin_branch
+    system "git reset --hard origin/" + @origin_branch
   end
   puts "Package lists, crew, and library updated."