Antform 2.0 released

Antform 2.0

Changes from 2.0 beta 2 to 2.0

Changes that could break older environments:
- BUG 2012577: stylesheet and icon files were resolved from the current working directory instead of the ant project base directory (ant standard).
- Use the class "File" in the save attribute to let ant handle the basedir.
- BUG 2498317: The trick parentFrame.setLocation(-500, -500) does not work on non-windows systems. Use null as parent instead. Drawback: no more icons on non-windows systems.

Fixed bugs:
- Issue when using tabs without specifying the first tab:
. doc update
. BuildException when missing first tab
- BUG 1632694 focus does not select correct tab
- Removed "editable" attribute from the doc as it is not implemented
- Avoid NPE when there are no focusable components
- Avoid NPE when saving file in case of an unset boolean. In such case, the boolean should not be set/written in the file.
- BUG 2013953: avoid NPE
- BUG 1886801: numbreProperty issue - min/max range was not enforced.