Expanded the permissions printing to a more conventional approach, printing the three triads of owner, group, and others, such as in ls or basically any other program that uses posix file permissions.
Implemented reversing the sort through the "-r" option.
Implemented sorting file list by file size through the "-S" option.
Fixed two bugs, one involving recursive traversal not doing what was expected, and the other involving paths supplied by the command line being ignored.
Updating documentation, mainly the readme.