Aggdraw

- Fix Python 2 compatibility when getting RGB from string colors [21]
- Re-add ability to get colors from PIL [21]

- Python 3 support added
- Use freetype-config to find root freetype directory
- REVIVE THE PROJECT!

- Fixed crash when using type() or help() on aggdraw objects.

- Fixed crash in Path() constructor.

- Fixed some build issues under recent GCC versions. The compiler
still issues more warnings than it should; I'll have to fix that
in a future release.

- Changed 'expose' method to require keyword arguments. You can
use 'hwnd' to pass in a window handle, or 'hdc' to pass in a
device context:

dib.expose(hwnd=window)
dib.expose(hdc=dc)

- Added 'clear' method. By default, it fills the entire image to
the original background color. If you pass in a color name, it
uses the given color instead.

- Added experimental 'Dib' support (based on code from the Python
Imaging Library). The 'Dib' factory is similar to 'Draw', but
allows the drawing context to be copied to the display.

dib = Dib("RGB", size, background)

... draw ...

dib.expose(hwnd=wnd)

- Fixed a couple of gcc compiler nits.