NET-562 FTPFile.toFormattedString should print only signficant parts of the parsed date
Part 1: detect which parts are present
TODO: set Calendar to indicate which parts are significant

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1644375 13f79535-47bb-0310-9956-ffa450edef68
Typo

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1644378 13f79535-47bb-0310-9956-ffa450edef68
NET-564 FTPFile.toFormattedString - allow specification of TimeZone for display

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1644380 13f79535-47bb-0310-9956-ffa450edef68