implement course clone and delete functionality from the command line

rakefile

@@ -396,6 +396,28 @@ task :publish => :package do
     sh("scp #{BUILD_DIR}/#{NORMALIZED_DEPLOY_NAME}_#{PKG_VERSION}*.deb #{PACKAGE_REPO}")
 end
 
+namespace :cms do
+  desc "Clone existing MongoDB based course"
+  task :clone do
+    if ENV['SOURCE_LOC'] and ENV['DEST_LOC']
+      sh(django_admin(:cms, :dev, :clone, ENV['SOURCE_LOC'], ENV['DEST_LOC']))
+    else
+      raise "You must pass in a SOURCE_LOC and DEST_LOC parameters"
+    end
+  end
+end
+
+namespace :cms do
+  desc "Delete existing MongoDB based course"
+  task :delete_course do
+    if ENV['LOC']
+      sh(django_admin(:cms, :dev, :delete_course, ENV['LOC']))
+    else
+      raise "You must pass in a LOC parameter"
+    end
+  end
+end
+
 namespace :cms do
   desc "Import course data within the given DATA_DIR variable"
   task :import do