rake db:create fails, authentication problem with postgresql 8.4
rake db:create

FATAL : password authentication failed for user <<mylogin>>

login: &login
  adapter: postgresql
  username: mylogin
  password: mypassword
  host: localhost
  port: 5432
  encoding: UTF8

development:
  <<: *login
  database: somesite_development

test:
  <<: *login
  database: somesite_test

production:
  <<: *login
  database: somesite_production

local all         all                 trust

ALTER USER xxxx WITH PASSWORD xxxx ;