[presentation-api] new commits pushed by mfoltzgoogle

The following commits were just pushed by mfoltzgoogle to 
https://github.com/w3c/presentation-api:

* Clarify handling of Presentation attributes
  by mark a. foltz
https://github.com/w3c/presentation-api/commit/0c1a17c56f7ba61c57e656b74733e56f5ca9d39e

* Merge pull request #261 from w3c/issue-205-null-properties

Clarifies handling of Presentation attributes.
  by Mark Foltz
https://github.com/w3c/presentation-api/commit/b9644ea499e77008b1cbd24e9e087984b52e5069

Received on Tuesday, 9 February 2016 00:33:19 UTC