port to time-1.5

ehem... you might want to consider using pvp ;-)
Oh well, that really is a bummer.

> I think I did not make myself clear. When iso8601-time is specified as a dependency and the flag is true, it will try to install time-1.5 even when time-1.4 is already installed. I think it will never downgrade time even with flag set to true.

Do know if there is a dual problem, if we set it to false, will it try to install time-1.4 even when time-1.5 is already installed?

Also, what do you think about the "depend on it anyway" solution?

Sorry to drag this so long for a package as trivial as `iso8601-time`, but a lot of packages will have the same problem so I'm very interested in finding a good recommendation.