Add achartengine library
Add LineGraph class
Add BarGraph class

extend LineGraph with function to create a custom line graph
Add PieGraph class
Add ScatterGraph class
Add getTestView to LineGraph class

View allows you to open the chart in the current activity
add fields for total payables and receivables
pulling from master
Add pie graph to Statistic page
Improve UI for Statistic activity
pulling from master
Merge pull request #60 from milneti/ViquocBranch

Viquoc branch