Legend items symbols now have a clipping path
Y and Y2 tick labels can now be customized the same way than X tick labels
Lines and areas thickness is now configurable through the options
Tension is now an option to configure the chart when interpolation mode is set
Fixed #54
Fixed #55
Preparing 1.0.4 release
Added bower_components and upgraded to latest libs
Merged from develop
Updated Plunker for 1.0.4
Cherry pick from develop