The idea here is the user should just be allowed to select a default option when saving a zidv bundle rather than being asked additional questions.
fix bug where no var in the geogriddatasource is selected
when saving zidv bundle, default versus rest of choices is done in radio button style
nix 'All' option and rename 'Default' to 'All displayed data'
Restore point cloud for text data, get rid of the ClassCastException
when clipping the data.
Take the time to improve the ZIDV data saving dialog.  If you are going
to have 2 mutually exclusive options - use radio buttons and set a
default. Inset the data source checkboxes and fix the problem with local
file names being on a different line than the checkbox.  Making things
work is part of the solution.  Making the user experience better is
worth the extra effort.
Merge remote-tracking branch 'upstream/master' into hydrometeor

Conflicts:
	src/ucar/unidata/data/DataSource.java