review v3: [JavaFX] Conditional support for GTK 3 on Linux

version 3: http://cr.openjdk.java.net/~ddhill/8087516.3/ This reworks the loading of the gtk symbols, providing for trying .so.0 first, and falling forward or back between 2 & 3. The meat of the change in the rework in wrapper_main.c I also removed the block of code mentioned by Serge in Glas

[9] review request: 8091308: Define fine-grained permissions for JavaFX

Jonathan and Chien, Please review the following, which adds fine-grained permissions to FX (following a similar pattern to that of AWT). https://bugs.openjdk.java.net/browse/JDK-8091308 http://cr.openjdk.java.net/~kcr/8091308/webrev.02/ http://cr.openjdk.java.net/~kcr/8091308/docs.02/javafx/ut