Update Plurals

Whenever you change plural rules, ordinal rules, or plural ranges — and at the end of the release — you must do the following.  The reformatting is required, since it regenerates the samples (after @), which are now necessary for correct functioning of ICU and other clients.
  1. Run GeneratePluralRanges.java to reformat pluralRanges.xml
    1. The results on the console. Paste into the file, and check differences.
  2. Run GeneratedPluralSamples to reformat plurals.xml, ordinals.xml.
    1. Generates two new files (in {generated}/cldr/supplemental/), which you can copy into the supplemental directory.
  3. Modify the minimal pair samples for plurals and ordinals at the end of PluralRulesFactory.
    1. These are only in PluralRulesFactory for now; we are going to move these into the locale files.
  4. Run GenerateAllCharts (actually, it is enough to run ShowLanguagesand the unit tests.
    1. This will insure that the rules are correctly represented, and aligned with the minimal pairs.
    2. Diff the plurals chart against the old one: eg /cldr-aux/charts/<version>/supplemental/language_plural_rules.html
  5. Run FindPluralDifferences to see that the expected changes are there (only tests integers right now).
    1. Modify the versions variable to use the last release.
    2. This is also run at the end of the release to get the Migration info for the release.
  6. Compare the results carefully, then check in.