warning message, what does this really mean?

gistfile1.txt

[demo_app (master)]$ rake -T
WARNING: Global access to Rake DSL methods is deprecated.  Please include
    ...  Rake::DSL into classes and modules which use the Rake DSL methods.
WARNING: DSL method DemoApp::Application#task called at /Users/tbird/.rvm/gems/ruby-1.8.7-p334/gems/railties-3.0.7/lib/rails/application.rb:215:in `initialize_tasks'
rake about              # List versions of all Rails frameworks and the environment
rake db:create          # Create the database from config/database.yml for the current Rail...
rake db:drop            # Drops the database for the current Rails.env (use db:drop:all to ...
rake db:fixtures:load   # Load fixtures into the current environment's database.
rake db:migrate         # Migrate the database (options: VERSION=x, VERBOSE=false).
rake db:migrate:status  # Display status of migrations
rake db:rollback        # Rolls the schema back to the previous version (specify steps w/ S...
rake db:schema:dump     # Create a db/schema.rb file that can be portably used against any ...
rake db:schema:load     # Load a schema.rb file into the database
rake db:seed            # Load the seed data from db/seeds.rb
rake db:setup           # Create the database, load the schema, and initialize with the see...
rake db:structure:dump  # Dump the database structure to an SQL file
rake db:version         # Retrieves the current schema version number
rake doc:app            # Generate docs for the app -- also availble doc:rails, doc:guides,...
rake log:clear          # Truncates all *.log files in log/ to zero bytes
rake middleware         # Prints out your Rack middleware stack
rake notes              # Enumerate all annotations (use notes:optimize, :fixme, :todo for ...
rake notes:custom       # Enumerate a custom annotation, specify with ANNOTATION=CUSTOM
rake rails:template     # Applies the template supplied by LOCATION=/path/to/template
rake rails:update       # Update both configs and public/javascripts from Rails (or use jus...
rake routes             # Print out all defined routes in match order, with names.
rake secret             # Generate a cryptographically secure secret key (this is typically...
rake stats              # Report code statistics (KLOCs, etc) from the application
rake test               # Runs test:units, test:functionals, test:integration together (als...
rake test:recent        # Run tests for recenttest:prepare / Test recent changes
rake test:uncommitted   # Run tests for uncommittedtest:prepare / Test changes since last c...
rake time:zones:all     # Displays all time zones, also available: time:zones:us, time:zone...
rake tmp:clear          # Clear session, cache, and socket files from tmp/ (narrow w/ tmp:s...
rake tmp:create         # Creates tmp directories for sessions, cache, sockets, and pids