Allow claim id's to be retrieved from Messages when available
Allow claim id's to be retrieved from Messages when available

fix for undefined index
Merge branch 'working' of github.com:nickjenkin/php-opencloud into working

Conflicts:
	lib/OpenCloud/Queues/Resource/Message.php
Merge pull request #247 from nickjenkin/working

Allow claim id's to be retrieved from Messages when available
Allow easier way to extract claim ID from claimed message hrefs; fixes #245