support missing (nil) data values for text encoding
Version bump to 1.6.1
change from spec to rspec
doc patch for #issue/2
Use URI.escape in jstize

In order to properly handle escaping | for gmail, use URI.escape in jstize.
Removed unused 'count' variable
Fix Gchart.supported_types to work right
Remove redundant #size method
Added alias "slice_colors"
Added usemap option to img tag
fixed axis label bugs, updated the specs and added some more documentation
Version bump to 0.0.0
Revert "Version bump to 0.0.0"

This reverts commit be4d34570d95fd347393c93e2e7443d3bc4af6a6.
Regenerate gemspec for version 1.6.1
restored labels based on official docs
added test
Version bump to 1.7.0
Version bump to 0.0.0
Version bump to 1.0.0
bumped the version