update money to fix bundler error trying to upgrade to rails 4.2

try to fix this error: Bundler could not find compatible versions for gem "i18n":
  In Gemfile:
    ebayapi (>= 0) ruby depends on
      i18n (<= 0.7.0.dev, >= 0.6.4) ruby

    rails (>= 0) ruby depends on
      i18n (0.7.0)