Changes nested=yes to nested=true
Merge pull request #545 from terwey/nested_comments_update

Changes nested=yes to nested=true
Fixes a bug in the Node walking
Merge pull request #546 from terwey/nested_comments_update

Fixes a bug in the Node walking
PHPCS and Documented the class
Whitespace
Merge pull request #547 from terwey/nested_comments_update

PHPCS and Documented the class
Merge branch 'master' of github.com:sourcefabric/Newscoop into stablemaster