Centralizes version numbers in a single place. This is not the best way of doing it in Gradle, but it's an improvement that will simplify other changes. I used the `build.properties` file because other versions are already written there.
There are other version numbers in the build file, but they are not attached directly to a dependency. Mostly libav ones. I decided not to touch them. ------------- Commit messages: - Initial commit Changes: https://git.openjdk.org/jfx/pull/1649/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1649&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8345063 Stats: 44 lines in 2 files changed: 15 ins; 3 del; 26 mod Patch: https://git.openjdk.org/jfx/pull/1649.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1649/head:pull/1649 PR: https://git.openjdk.org/jfx/pull/1649
