Merge pull request #86 from tpkelly/master

Update documentation
added custom ordering to Axis, which incudes this in its request for series data
Merge pull request #87 from tpkelly/master

Auto-generate version number
bugs introduced by refactor to bubbleseries fixed
adding getter/setter for post aggregation function
Removed mention of d3-tip as a dependency.
Merge pull request #88 from niksoper/master

Removed mention of d3-tip as a dependency.
Grouping.getData now checks its own orderingFunction if none is provided by the caller
merge commit to bring in Nick's d3-tip comment update
add a unit test for the post aggregation functionality
removed unused variables
removed jsdoc from private methods inside Grouping
update to parameter names and use of logical and.
Merge pull request #89 from Stavrakakis/master

ICS-46 : Post aggregation reintroduced and general Grouping refactor
Chart widths responding to window resize.
Moved window resize event subscription to Chart init function.
Resizing chart width taking margin into account.
Removed console.log debugging.
Tidied Chart constructor and using container offsetLeft instead of chartSVG offestLeft when calculating chart width on window resize
Fixed bug where x position of markers is not correct after resizing the chart's width.