Update non-gems distributions to use sqlite3 as the default, matching…

… the "rails" command default [#1270 status:committed]

Signed-off-by: David Heinemeier Hansson <david@loudthinking.com>

railties/Rakefile

@@ -192,7 +192,7 @@ task :copy_configs do
   app_name = "rails"
   socket = nil
   require 'erb'
-  File.open("#{PKG_DESTINATION}/config/database.yml", 'w') {|f| f.write ERB.new(IO.read("configs/databases/mysql.yml"), nil, '-').result(binding)}
+  File.open("#{PKG_DESTINATION}/config/database.yml", 'w') {|f| f.write ERB.new(IO.read("configs/databases/sqlite3.yml"), nil, '-').result(binding)}
 
   cp "configs/routes.rb", "#{PKG_DESTINATION}/config/routes.rb"