Colorama required on Windows

[KoesterD]

Great tool :)

I'm using Windows 8.1 and downloaded Python 3.5.0 from https://www.python.org/downloads/windows/.
After installing pinggraph and statistics from pip3, I still got the following error:

λ gping 8.8.8.8
Traceback (most recent call last):
  File "c:\users\dennis_lpt\appdata\local\programs\python\python35\lib\runpy.py", line 170, in _run_module_as_main
    "__main__", mod_spec)
  File "c:\users\dennis_lpt\appdata\local\programs\python\python35\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\dennis_lpt\AppData\Local\Programs\Python\Python35\Scripts\gping.exe\__main__.py", line 5, in <module>
  File "c:\users\dennis_lpt\appdata\local\programs\python\python35\lib\site-packages\gping\pinger.py", line 10, in <module>
    from colorama import Fore, init
ImportError: No module named 'colorama'

After installing colorama via pip3, everything works.

Maybe you could add this to the readme?

[jasonsperske]

I'm experiencing this same issue on OSX 10.10, after installing colorama I run into the #2 bug

[KoesterD]

Same issue as #5