added 403 support
Merge pull request #5 from nmlapre/master

applied requested modifications to 403 handling
merged and fixed
Merge pull request #13 from thinkaliker/master

merged and fixed 404/403
merged with updated http-stdin.sh. Handled the case of a non-sh file being passed into the script. If the passed in file is a directory, check if there is an index.html file in the directory, display it. Otherwise display all the files in the passed in directory.