dahlia/wand — pull request #60 by pflorczyk (2012-09-18 20:54:17+00:00)
Title: Added Image.blank()

This change is backward incompatible. It removes width, height and background from `Image.__init__()` in favour of new method `Image.blank()`.

Example:
```python
i = Image().blank(100, 100)
```
Not a big change but now code should be more readable and less error-prone.