factory_toolkit: Cleanup unused files.

* Exclude dome from factory_toolkit.
* Exclude bad symbolic links in bin/.
* Exclude empty folders (doc/, minijack/)

BUG=None
TEST=make test
TEST=manually on DUT.

Change-Id: Iffc86560bcddcb44c5eeb181877755949c2d9bde
Reviewed-on: https://chromium-review.googlesource.com/535337
Commit-Ready: Pi-Hsun Shih <pihsun@chromium.org>
Tested-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
diff --git a/py/toolkit/installer.py b/py/toolkit/installer.py
index 76361d0..34786d4 100755
--- a/py/toolkit/installer.py
+++ b/py/toolkit/installer.py
@@ -90,9 +90,8 @@
     '--include', 'py/umpire/client',
     '--include', 'py/umpire/client/**',
     '--exclude', 'py/umpire/**',
-
-    # Lumberjack is only used on Umpire server
-    '--exclude', 'py/lumberjack'
+    '--exclude', 'bin/umpire',
+    '--exclude', 'bin/umpired',
 ]