Log Message:
Changes 59.1:
* Emoji 5.0 data
* Includes bidi data files from Unicode 10 beta.
* Includes segmentation data files and rules from Unicode 10 beta and CLDR 31.0.1.
* Does not yet include the Emoji_Component property.
* Otherwise ICU 59 continues to use Unicode 9 data.
CLDR 31.0.1
* Including updates for emoji 5.0, for example local names for England, \ 
Scotland, and Wales.
* GMT and UTC are no longer unified, and CLDR provides distinct UTC display \ 
names, avoiding confusion with standard (winter) time in Britain.
* See the CLDR download page for other CLDR features and migration issues in \ 
CLDR v31.
New case mapping API (C++ & Java classes CaseMap) supports styled text.