tartley/colortuple — pull request #1 by svisser (2014-09-03 11:16:36+00:00)
Title: Fixed iteration to work in Python 2.x and Python 3.x

This change prevents the following error in Python 3.2:

```python
File "colortuple/colortuple.py", line 167, in
for name, value in Color.__dict__.iteritems()
AttributeError: 'dict_proxy' object has no attribute 'iteritems'
```

and the following error in Python 3.3 and 3.4:

```python
File "./colortuple/colortuple.py", line 167, in
for name, value in Color.__dict__.iteritems()
AttributeError: 'mappingproxy' object has no attribute 'iteritems'
```