All variations of getRelativeTimeSpanString() now properly handle dates
that are in the future. Prior, the version used by
getRelativeDateTimeString() would occasionally show the time instead of
a date when the future date was the same weekday as the current weekday.
This resulted in the time output being duplicated, eg.: "11:23, 11:23"
Change-Id: If20972a6942cce792fa233437f94dedfb71379f3
Signed-off-by: Steve Pomeroy <steve@staticfree.info>