(FR #1771) Never send tax letter in virtual currency

Change-Id: Ic130f50334826ed010d2ad97af554da1a083bc04
Logging; whitespace

Change-Id: I5f3b1ef0c9356134f37b4bb5f063495ecfbd9dd2
(FR #1782) Always round money before handing off to Civi

TODO: look up significant decimals in CLDR

Change-Id: I9c3363437219a8e11d04b0f3da2036ca799af34c