Stage 6 click-testing fixes and production setup

- file_attachment.rb: delete old upload directory before writing replacement
  files; fixes orphaned variants when filename or mime type changes
- assets/edit.html.erb: add file upload field and current file display;
  the form was previously empty and non-functional
- admin.css: fix button_to hover styling; buttons now show orange hover
  to signal interactivity
- test/controllers/users_controller_test.rb: assert input[type=submit]
  not anchor tag for destroy action (button_to change)
- test/test_helper.rb: add I18n.locale reset in setup block
- doc/rc.d_cccms: fix cccms_chdir, add start_precmd for log/pid dirs,
  PATH export for bash wrapper, user/pid/tcp_nopush unicorn fixes
- doc/INSTALL.md: new installation guide covering all non-obvious steps
- Remove parked search migration from doc/ (now in db/migrate/)

2 files changed, 7 insertions, 3 deletions

diff --git a/test/controllers/users_controller_test.rb b/test/controllers/users_controller_test.rb
index 3ace95c..d37b428 100644
--- a/test/controllers/users_controller_test.rb
+++ b/test/controllers/users_controller_test.rb
@@ -8,13 +8,13 @@ class UsersControllerTest < ActionController::TestCase
     assert_response :success
     assert_select "a", { :count => 0, :text => "Destroy" }
   end
-  
+
   test "get index as admin user renders admin partial" do
     login_as :aaron
     get :index
     assert_response :success
-    assert_select "a", "destroy"
-    assert_select "a", "show", "Show Link is missing"
+    assert_select "input[type=submit][value=destroy]"
+    assert_select "a", "show"
   end
   
   test "get new when logged in as admin" do
diff --git a/test/test_helper.rb b/test/test_helper.rb
index e7b15da..d438bb5 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -47,6 +47,10 @@ class ActiveSupport::TestCase
 
   # Add more helper methods to be used by all tests here...
 
+  setup do
+    I18n.locale = I18n.default_locale
+  end
+
   def create_node_with_published_page
     node = create_node_with_draft
     draft = node.draft