[VFS-309] DefaultFileContent will remove thread data on close to avoid leaks

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1644682 13f79535-47bb-0310-9956-ffa450edef68
Style Police (make CheckStyle happy: line breaks, whitespace, imports, bracestyle)

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1646351 13f79535-47bb-0310-9956-ffa450edef68
[tests] Findbugs: fix assertion format

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1646366 13f79535-47bb-0310-9956-ffa450edef68
Javadoc cleanup

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1646371 13f79535-47bb-0310-9956-ffa450edef68
Correcting a typo in a comment.


git-svn-id: https://svn.apache.org/repos/asf/commons/proper/vfs@1646513 13f79535-47bb-0310-9956-ffa450edef68