We're still supporting the current dynamic_options functionality. This is a first pass and will be cleaned up as we continue to evolve more tools to use this new approach.
Within tool configs, SelectToolParameter types now include a <select_options> tag set. Several tools have been altered to use this new approach. Other tools we enhanced to
use the ColumnListParameter type.
Datatypes are defined like:
[galaxy:datatypes]
bed = galaxy.datatypes.interval:Bed
png = galaxy.datatypes.images:Image,image/png
where the mime-type (default of text/plain) can be declared after the class name, as is seen with png.
Greg Von Kuster