review request: [Text] TextArea cannot handle Chinese space character properly

[Felipe Heidrich]

Hi Steve,

Please review:
https://javafx-jira.kenai.com/browse/RT-36133
http://cr.openjdk.java.net/~fheidric/RT-36133/webrev/

The fix is to use BreakIterator.getLineInstance() if the text contains CJK 
characters.

this also fixes https://javafx-jira.kenai.com/browse/RT-21878

Thanks
Felipe