Merge pull request #1 from restlet/master

Bring the fork up-to-date
Fix for issue #946: OData Edm.DateTime properties are parsed as null if
seconds are omitted
Test case for issue #946: OData Edm.DateTime properties are parsed as
null if seconds are omitted.
Merge pull request #947 from grammophone/master

Fix and test case for Issue #946: Edm.DateTime properties are parsed as null if they omit seconds