Added File utility function to check that a given filename has a specified extension
Added a File utility function to check if a given file is hidden per the UNIX convention of prefix the name with a '.'
CLEANUP: Fixed license header of src/File.php for clean API output.
Added wrapper for the PHP markdown project
Added a Date utility class that includes a function for prepopulating an array with keys each date in a specified range
Added utility functions for coraboratively locking/unlocking a directory.
Added FileLister utility interface and an implementation which uses the built-in glob function.  This has been added to a new PSR-0 compliant source folder
Fixed parse errors in FileLister classes
Removed deprecated Autoloader
Removed deprecated ClassLoader class
Moved non-deprecated classes into PSR-0 compliant package structure
Removed deprecated classes
Added a timeout to the dirlock function
Expanded FileLister interface to include function that checks for the existence of a file in a specified directory
Updated GlobFileLister to return paths relative to a given directory instead of absolute paths
Renamed String utilities class to StringUtils so that a string wrapper class can be created.  Also removed some obsolete test suite files
Moved StringTest to StringUtils test to match the class rename
Updated test-common to use SplClassLoader
Added endsWith function
Added a primitive string wrapper object