Add a .inCents() function

[graemetavour]

If you need to access the underlying value in cents (for instance to persist to a database or use in an API call), currently you need to use:

currency(valueInDollars).intValue;

It would be slightly more clear to be able to use:

currency(valueInDollars).inCents();

Not sure if inCents() is the best naming; could also consider toCentValue(), centValue(), valueInCents(), etc

[MikesGlitch]

'subUnits' might be better to help remove api references to the US dollar/cents.

[raldred]

How about currency(valueInMajorUnits).minorUnits?

[alexlukelevy]

If you had a precision > 2, then currency(valueInDollars).intValue would not equal cents either.