jme3-utilities-nifty v0.7.5

• Remove one of the PopScreenController.showPopupMenu() methods.
• Add allowNull option to float/integer/long dialog controllers.
• Privatize activateDialog() and activatePopupMenu() in PopScreenController.
• Fix the logic error that caused FloatDialog to accept "NaN" as input.
• Add the GuiWindowController class.
• Add dialog controllers for booleans, doubles, and vectors.
• Add enable/disable methods for named sliders to GuiScreenController.
• Implement positioning policies for submenus.
• Setting a button's text to "" will now hide the button.