Update diagnostics to report video engine file copy errors
Add new method to locate jar files, use to find QTJava.zip
Add mouse drag control to popup editor, improve tooltips & warnings

Drag mouse on new dragPane to adjust numerical expressions
Warn users and disallow numbers as parameter names
Provide tooltips for popup editor components
Fix popup editor bug when table row is deselected
Add new FontSizer method and implement font sizing for tools
Add code to resize fonts
Add font sizing code to display GUI at different FontSizer levels

Mostly tools, but also dialogs
--all JFileChoosers and JOptionPane dialogs
--OSPLog
--DataTool
--LibraryBrowser
--FitBuilder
add more font sizing code, mostly for popup menus
Fix bugs loading from recent menu and refreshing File|Close text
Test for null Dataset in getColumnCount()
Add code to correctly display different font sizes
Restore column order and widths when refreshing DataTable
Resize tooltips
Handle adding and removing columns when refreshing table
Add code to enable HTML text substitutions

Used by Tracker to change stylesheet reference when changing font size
Add setWorldPosition() method
Give public visibility to DropdownRenderer
Resize button fonts every time text is changed (fixes bug in OSX)
Tweak ValueMouseControl so all digits are adjustable

Also eliminate shift-drag option