[ogsa-hpcp-wg] Updated Advanced Filter specification

[Steven Newhouse]

https://forge.gridforum.org/sf/docman/do/downloadDocument/projects.ogsa-hpcp-wg/docman.root.drafts.adv_filter_ext/doc14975/3

Updates following this week's call:
* Change of Job element name to Activity in dynamic node details
* Make the Job (now Activity) identifier non-numerical
* Simplified the CompactResources behaviour as much of it now provided by dynamic node status

Enjoy.

Steven