fixed small typo
Merge pull request #78 from faizans/develop

fixed small typo
Add 'created' event to the 'createChart' function

This adds a new event called 'created', which is triggered once a
chart is finished drawing. This is created for all three charts, and
it returns:

- The type (e.g. 'Chartist.Bar')
- The labels (in the case of Chartist.Pie, seriesGroup)
- The created SVG element
Update 'created' event return object

This changes the 'created' event returned object to send back:

- The bounds
- The chartRect
- The options

Additionally, it keeps the inserted SVG as a returned object.
Merge pull request #81 from drewbarontini/develop

"Created" Event
Refactored internal chartist reference
Added delta analysis method in core for later use in progressive data updates
Added possibility to add event handlers with asterisk that will be triggerd on all events including the event name in the cb function
Added animation function to SVG library
Added possibility to pass DOM node to SVG constructor so you can wrap existing SVG nodes into a Chartist.Svg element
Fixed svg recycling on re-creation
Fixed resize listener detach that wasn't working properly
If highest data value is exactly on grid line we don't need to recalculate the steps
Refactored Chartist.Svg to use Chartist.Class
Added supportsAnimations property to base chart class for convenience
Fixed class dox comments
Including event when line and area is drawn
Changed default scaleMinSpace to 20 to be more mobile friendly
Renamed getPixel method to stripUnit and added ensureUnit as convenience functions for user input
Fixed bug with line area base