Katee/quietnet — pull request #31 by tevino (2014-05-20 07:01:10+00:00)
Title: Solve NameError: name '[user input]' is not defined in Python2

```sh
$ python2 send.py
Welcome to quietnet. Use ctrl-c to exit
> hello
Traceback (most recent call last):
File "send.py", line 51, in
message = input("> ")
File "", line 1, in
NameError: name 'hello' is not defined
```

This problem is caused by the difference of builtin function `input` between Python3 and Python2.
- In Python2 `input()` is equivalent to `eval(raw_input())`
- In Python3 `raw_input()` is renamed to `input()`

This patch should make `send.py` work on both Python2 and Python3.