fixing y-axis label position

fixing y-axis label position

tweaking example.

zero line?

Version 1.1.0 brings a couple new features over v1.0.0.

New Features:
* SMASeries : "Simple Moving Average" is a windowed moving average of an underlying `ValueProvider`.
* EMASeries : "Exponential Moving Average" is a slightly different moving average type that weights more recent values higher.
* BollingerBandsSeries : A series type used in technical stock analysis; introduces and is an example of a `BoundedValueProvider`.
* MACD* : A group of series types that relate to the MACD family of functions. Are good examples of `ValueProvider` nesting.
* CreateLegend : A helper function built to aide in creating a legend for charts; it is good example to base your own legend element renderable on.
* HistogramSeries : A special type of series that draws a histogram (or bar chart) for an underyling `ValueProvider`. It is itself a `BoundedValueProvider`.

New Concepts:
* BoundedValueProvider : a new type of value provider that provides both a min and max y-value.
* LastValueProvider : a new interface that codifies which series or objects provide a `GetLastValue` function.

Also included, lots of bug fixes.

Feedback welcome!

go-chart v1.0

=============

This marks the v1.0 release of `go-chart`. What this means specifically is that I will do my best not to change the API of existing objects to preserve stability.

There is possibility behavior of existing api calls might change slightly in point releases, such as padding and drawing adjustments etc.

Otherwise, if you find a bug, please feel free to create an issue.

Thanks!
-Will

Merge branch 'master' of github.com:wcharczuk/go-chart

percentage/percent