Commented Issue: Support for GraphML "for=all" in the key attribute [23820]

NodeXL v1.0.1.229.
Add support for the "for=all" value in the GraphML 'key' attribute. For example, NodeXL does not support this...


See http://graphml.graphdrawing.org/specification/dtd.html#key
Comments: ** Comment from web user: kmdeluca **

Tony - see the graphml reference.
When defining a key, "all" is a valid reference, so you can do something like this...
<key id="id" for="all" attr.name="id" attr.type="string"/>
to say that the key applies to all element types.

Kevin