added vertical scrollbars to the askChoice API fields
reconfigured askChoice to support multiple custom buttons (breaks compatibility)
- customButton parameter changed to customButtons, requires List
- Closing the window now returns 0
- The custom buttons now return negative integers corresponding to the numbered custom button
Merge pull request #1073 from brine/test

added vertical scrollbars to the askChoice API fields
Auto generated commit for version 3.1.97.228-Test
Auto generated commit for version 3.1.98.228