Added a isset() to avoid notices on certain PHP configurations.
Merge pull request #24 from trashofmasters/master

Added a isset() to avoid notices on certain PHP configurations.
Merge pull request #15 from mikeboulet-haw/master

Fixed issue where API call would fail if per_page or page parameters wer...
Updated test case per request by @isaacsu
Merge branch 'upstream'
Merge branch 'master-zd'