TODOs

+ Array#histogram

|_ Algorithm blows up when there's only 1 bucket (the `range` becomes 0)

+ Path

|_ Fix rename/mv
|_ Full README with more real-world examples (grep scripts/)
   - compare folders using Path#ls_r and Path#md5
|_ Documentation: categorize methods for large classes (the way Pathname does)
|_ Organize into a class hierarchy (Path, FilePath, URLPath, RelativePath)
|_ (Un)Archivers (zip, rar, etc.)

+ Logger

|_ colourized ("ramaze" has a nice style)
|_ output to STDERR (default)
|_ no setup (default)
   |_ Log "message"      <- defaults to info
   |_ Log.warn "message"
   |_ Log object         <- prettyprints it
|_ Verbose mode shows the calling method's info
   |_ eg: [file:line:method]
|_ "gsmartcontrol" has good warning messages
    ie: "|13<warn>  |07[hz] Warning: exit: The device error log contains records of errors."