release 0.2.11
add highlight on hover legend
fix legend design
disable highlight if color was disabled
release 0.2.12
fix issue with tooltip delay
auto get version for update bower.json
update default style for trendline
fix tooltip for line chart

Change length calculation from point to line.
release 0.2.13
Fix "order" dimension scale
return reference to trendline plugin
release 0.2.14
release 0.2.14
add few test on api
release 0.2.15
hide checkbox icon
Fix trendline style
release 0.2.16
Fix trendline error message CSS style