diff --git a/config/environment.rb.SAMPLE b/config/environment.rb.SAMPLE
deleted file mode 100644
--- a/config/environment.rb.SAMPLE
+++ /dev/null
@@ -1,105 +0,0 @@
-# Be sure to restart your web server when you modify this file.
-
-# Uncomment below to force Rails into production mode when 
-# you don't control web/app server and can't set it the proper way
-# ENV['RAILS_ENV'] ||= 'production'
-
-# Specifies gem version of Rails to use when vendor/rails is not present
-RAILS_GEM_VERSION = '2.3.8' unless defined? RAILS_GEM_VERSION
-
-# Bootstrap the Rails environment, frameworks, and default configuration
-require File.join(File.dirname(__FILE__), 'boot')
-
-Rails::Initializer.run do |config|
-  # Settings in config/environments/* take precedence over those specified here
-  
-  # Skip frameworks you're not going to use (only works if using vendor/rails)
-  # config.frameworks -= [ :action_web_service, :action_mailer ]
-
-  # Only load the plugins named here, by default all plugins in vendor/plugins are loaded
-  # config.plugins = %W( exception_notification ssl_requirement )
-
-  # Add additional load paths for your own custom dirs
-  # config.load_paths += %W( #{RAILS_ROOT}/extras )
-
-  # Force all environments to use the same logger level 
-  # (by default production uses :info, the others :debug)
-  # config.log_level = :debug
-
-  # Use the database for sessions instead of the file system
-  # (create the session table with 'rake db:sessions:create')
-  config.action_controller.session_store = :active_record_store
-
-  # Use SQL instead of Active Record's schema dumper when creating the test database.
-  # This is necessary if your schema can't be completely dumped by the schema dumper, 
-  # like if you have constraints or database-specific column types
-  # config.active_record.schema_format = :sql
-
-  # Activate observers that should always be running
-  # config.active_record.observers = :cacher, :garbage_collector
-
-  # Make Active Record use UTC-base instead of local time
-  config.time_zone = 'UTC'
-  
-  # Setting locales
-  config.i18n.default_locale = 'en'
-
-  # See Rails::Configuration for more options
-
-  # -------------
-  # Required gems
-  # -------------
-  config.gem "haml"
-  config.gem "tmail"
-  config.gem "rdiscount", :lib => "rdiscount"
-
-  # NOTES on rspec: if you wan to test with rspec, you have to install
-  # rspec yourself, just call: [sudo] gem install rspec-rails
-
-end
-
-# Add new inflection rules using the following format 
-# (all these examples are active by default):
-# Inflector.inflections do |inflect|
-#   inflect.plural /^(ox)$/i, '\1en'
-#   inflect.singular /^(ox)en/i, '\1'
-#   inflect.irregular 'person', 'people'
-#   inflect.uncountable %w( fish sheep )
-# end
-
-# Add new mime types for use in respond_to blocks:
-# Mime::Type.register "text/richtext", :rtf
-# Mime::Type.register "application/x-mobile", :mobile
-
-# Include your application configuration below
-
-# If you want to manage graders through web interface, set the path to
-# the grader directory below.  This dir is where raw, ev, ev-exam,
-# scripts reside.  All grader scripts will be in
-# #{GRADER_ROOT_DIR}/scripts.  
-GRADER_ROOT_DIR = ''
-
-# These are where inputs and outputs of test requests are stored
-TEST_REQUEST_INPUT_FILE_DIR = RAILS_ROOT + '/data/test_request/input'
-TEST_REQUEST_OUTPUT_FILE_DIR = RAILS_ROOT + '/data/test_request/output'
-
-# To use ANALYSIS MODE, provide the testcases/testruns breakdown,
-# and the directory of the grading result (usually in judge's dir).
-TASK_GRADING_INFO_FILENAME = RAILS_ROOT + '/config/tasks.yml'
-
-# TODO: change this to where results are kept.
-GRADING_RESULT_DIR = 'RESULT-DIR'
-
-# Change this to allow importing testdata into database as test-pairs.
-# This is mainly for Code Jom contest.
-ALLOW_TEST_PAIR_IMPORT = false
-
-# Uncomment so that the system validates user e-mails
-# VALIDATE_USER_EMAILS = true
-
-# Uncomment so that Apache X-Sendfile is used when delivering files
-# (e.g., in /tasks/view).
-# USE_APACHE_XSENDFILE = true
-
-# Uncomment so that configuration is read only once when the server is loaded
-# CONFIGURATION_CACHE_ENABLED = true