Add error handling to SpringPropertiesUtil
Set objectInfo of the starting folder on getChildren/getDescendants

Before, the lack of objectInfo of the starting folder caused another
getObjcect to make an objectInfo.
Set contentStreamFileName (to the same as cmis:name)

contentStreamFileName is not stored in Database, and it's better that it
can vary in accordance with cmis:name.
Add queryName to NewTypeSettableAttributes
Add another getVersionSeries method(Document document)

In almost all the cases, getVersionSeries is called after a document is
retrieved. Only exception is getObject(String versionSeriesId), which is
a workaround for Liferay.
Set cmis:versionCheckOutId to "not set" when a user is not an owner of
PWC