Add .pyc and .egg-info to .gitignore.
Remove unused import.
Make value formatting fully configurable (through a lambda).
Rename Config.value_format to value_formatter
Merge pull request #9 from Kozea/configurable-format

Make value formatting fully configurable (through a lambda).
Make filename optional in render_to_png()

In that case, CairoSVG returns a byte string.
Add a dots_size config.
Pie graph: do not show slices of 0° angle.

These sometimes result in an ugly 1 pixel wide line.
Pie graph: Do not show static values on slices with small angles.

The value of 0.3 radians is arbitrary and could be tweaked a bit.
Merge pull request #11 from Kozea/no-zero-slice

Pie graph: do not show slices of 0° angle.
Merge pull request #12 from Kozea/skip-value-on-thin-slice

Pie graph: Do not show static values on slices with small angles.
Fix one test
add png visualization in ipython notebook

Add a _repr_png_ method to ghost to give a png preview of plots in the
notebook.
Secondary axis support
Update pygal/util.py
Merge pull request #16 from yobuntu/master

allow  unicode in labels
Merge pull request #15 from aebrahim/notebook

add png visualization in ipython notebook
x axis limiter for labels for line graph
Merge pull request #17 from wiktorn/unlimited_x

x axis limiter for labels for line graph
Merge branch 'master' of https://github.com/wiktorn/pygal into 2ndary_axis