Use the whole width of the terminal assume width of 80 if none found
Show percentages in the final column. Show ASCII bars indicating usage
of the underlying directories in the space inbetween.
Display (height of terminal - 10) entries by default.
Reverse the output order so largest is at the bottom.
Break up tests. Change older tests to check real output of program.
Fixes#9https://github.com/bootandy/dust/issues/9
Instead of printing the all sub tree leaves only the last leaf is now
printed. See readme change for example
The flag '-p' was added to print the sub tree the old way
Advised to use walkdir by burntsushi as using recursion on file systems
can blow the stack.
walkdir is slower but allows the code to be cleaner and more reliable
Also experimented with ignore but locking the hashmap resulted in
similar performance to walkdir but with much uglier code.
andy.boot
Xavier L'Heureux
Joe Ardent