Create Procfile

needed
Merge pull request #19 from ksgant/patch-1

Create Procfile
small typo fix
Merge pull request #20 from sergeifilippov/patch-1

small typo fix
add 'x-powered-by' header, better initial output, small updates for express, dependency upgrades, update contributors.
fix small issue with postRegex.
add support for redirects.
fix package.json.
Merge remote-tracking branch 'upstream/master'