doc cleanups
fix typo
Merge pull request #55 from phpcr/doc-cleanup

doc cleanups
JSR_333-67: allow an optional filter in NodeInterface::getNodeNames
remove @return void docblocks as discussed in ref #55
Merge pull request #57 from phpcr/filter-getNodeNames

JSR_333-67: allow an optional filter in NodeInterface::getNodeNames
Merge remote-tracking branch 'origin/master' into document-traversable

Conflicts:
	src/PHPCR/Version/VersionManagerInterface.php