Don't pass non-finite values to grisu. (Fixes #206)
Add a set_default_plot_format function.

Let's you choose how plots are rendered when draw isn't explicitly called. See
Actually fix #206, maybe.
Fix broken writemime.

How did that get commented out...
add :none option to key_position in order to hide it
Merge pull request #209 from nignatiadis/nikos

Add option to hide key/legend
Document Theme.key_position. (See #209)
Replaced ")" with "}" in code block
Fix a couple issues with explicit tick marks. (Fixes #212)
Merge pull request #211 from sveme/patch-1

Replaced ")" with "}" in code block
Fix no grid/ticks in subplots with free axis. (See #213)
Merge remote-tracking branch 'upstream/master' into upmerge