added a way to ignore unreadable directories (via Finder::ignoreUnreadableDirs())
unified the way subfolders that are not executable are handled by always throwing an AccessDeniedException exception
2.2.0
added Finder::path() and Finder::notPath() methods
added finder adapters to improve performance on specific platforms
added support for wildcard characters (glob patterns) in the paths passed
to Finder::in()
2.1.0
added Finder::sortByAccessedTime(), Finder::sortByChangedTime(), and
Finder::sortByModifiedTime()
added Countable to Finder
added support for an array of directories as an argument to
Finder::exclude()
added searching based on the file content via Finder::contains() and
Finder::notContains()
added support for the != operator in the Comparator
[BC BREAK] filter expressions (used for file name and content) are no more
considered as regexps but glob patterns when they are enclosed in '*' or '?'