Humanized_money_with_symbol: now accepts options that'll be passed on to...

... .humanized_money

!!! I had trouble running the test suite (see: https://github.com/RubyMoney/money-rails/pull/130) - hopefully Travis will do this for me.

the reason I need to pass options to humanized_money_with_symbol is that we want to set the `no_cents_if_whole` option on a per-method-call basis.