PROV-ISSUE-667: attribute/element/type usage conventions in note [XML Serialization]

PROV-ISSUE-667: attribute/element/type usage conventions in note [XML Serialization]

http://www.w3.org/2011/prov/track/issues/667

Raised by: Stephan Zednik
On product: XML Serialization

>From Luc's feedback on PROV-XML WG Note:

I find the use of terms "attribute", "element" and "type" very confusing.
  
   I suggest a systematic replace as follows, to distinguish the prov
   and xml usages of the terms.

   - attribute to become  prov-"attribute" or xml-attribute
   - element to become  prov-"element" or xml-element
   - type to become  prov-"type" or xml-type 

   For prov, I would also put them in quote.

   Likewise, see attached file for some occurrences. But systematic
   search is required.