Added task to scan a channel's storage for videos to import

Rakefile

@@ -7,6 +7,11 @@ namespace :db do
   task :migrate do
     %x{sequel -m 'db/migrations/' 'sqlite://data/stgm.db'}
   end
+
+  task :import do
+    channel = ENV['channel']
+    puts %x{ruby scan.rb "#{channel}"}
+  end
 end
 
 namespace :server do