Update readme.txt
Test commit.
Merge remote-tracking branch 'upstream/master'
Update readme.txt
Review #2 on Documentation
Minor grammar change.
Expansion of cluster DOC_ classes

Expansion of cluster DOC_ classes to all include their local hierarchy
as well as list of classes in a classes list (as originally intended by
'classes' item in templates) rather than having "features" -- in order
to permit clickable access to those classes in the documentation.
Documentation refinements
Merge branch 'master' of https://github.com/vwheeler63/masking_library into vwheeler63-master

Conflicts:
	mask/readme.txt