Revision history for Data-Graph-Util

0.002   2016-06-24 (PERLANCAR)

	- toposort() now accepts an optional second argument to sort
	  specified nodes.

	- [doc] Add description for toposort(), link to Wikipedia article
	  about topological sorting.


0.001   2016-06-24 (PERLANCAR)

        - First release.
