RFR: 8307117: TextArea: wrapText property ignored when changing font

[Andy Goryachev]

Requesting content layout when font changes.

This change makes the visual impact of [JDK-8314683](https://bugs.openjdk.org/browse/JDK-8314683) more visible, so perhaps both bugs should be fixed at the same time.

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Commit messages:
 - Merge branch 'master' into 8307117.wrap
 - request layout when changing font

Changes: https://git.openjdk.org/jfx/pull/1217/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1217&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8307117
  Stats: 5 lines in 1 file changed: 4 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jfx/pull/1217.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1217/head:pull/1217

PR: https://git.openjdk.org/jfx/pull/1217