Added 'server' header to HTTP responses
Moved the responses to the server header.
Refactoring the parsing code to be cleaner
Moved the GET handler to it's own function, added CONST to a lot of
functions that use Keys.
Moved handle_post to it's own function.
Moved delete to it's own handler
Moved the 404 response to it's own function.
Forgot this one.
Merge branch 'master' into feature/fix_everything_ht