Template:Challenge levels extractor

USAGE
This template is a phantom template used in DPL calls.

It extracts the challenge range level numbers from challenge templates that use the following named parameters:
 * levelrange

The result is the level range of quests in a category. It also stores the result in the variable  for further use by the calling template. This is only useful if the template is not used as a phantom in DPL, in which case the variable cannot be accessed. In case the template can't extract a value (missing parameters or unknown format),  is produced.

EXAMPLE

 * The below code does the following:
 * It selects every quest in the defined adventure pack.
 *  Vaults of the Artificers
 * TBD