Changed .class properties to ['class'] to prevent IE8 JS errors, IE8 treats class as an identifier instead of a property
fix for d3 require compatibility in component
lock to 3.4.4
resolved conflicts with upstream
mbostock taged with v3.4.4 not 3.4.4
Use svg instead of png to get better image quality
Fix class for focused legend
Change focus/defocus logic to use css class - #530
Updated README.md text from 'Another samples' to 'Additional Samples'

Updated the text of line 13 in README.md from 'Another samples' to 'Additional samples' to improve clarity regarding the plurality of samples available in the repository.
added start and end callback for zoom
Support TSV - #532
Remove pie.sort and donut.sort options
Fix min/max for Gauge chart - #536
Merge pull request #537 from jkuchta/master

Changed .class properties to ['class'] to prevent IE8 JS errors, IE8 tre...
Merge pull request #538 from slajax/master

Lock component d3 to 3.4.4
Fix axis.x.tick.centered on category axis - #539
Separate clip for chart and grid - #502
Merge pull request #542 from PeterDaveHello/patch-1

Use svg instead of png to get better image quality
Generate c3.min.css by grunt - #543
Merge branch 'master' of github.com:masayuki0812/c3