changed getDataSize() to getData()

Conflicts:
	EazeGraphLibrary/src/main/java/org/eazegraph/lib/charts/BarChart.java
	EazeGraphLibrary/src/main/java/org/eazegraph/lib/charts/BaseChart.java
	EazeGraphLibrary/src/main/java/org/eazegraph/lib/charts/StackedBarChart.java
Merge branch 'getdata'

Conflicts:
	src/main/java/org/eazegraph/lib/charts/BaseChart.java
	src/main/java/org/eazegraph/lib/charts/StackedBarChart.java