add accumulative graph
add dynamic component
static power, remove showing impedance, add battery discharge capacity
calcultate battery capacity and current
add GraphViewCapability
add GraphViewCapability and property editor
change naming capacity -> stateOfCharge
save endTime as long type to model
cost graph updates simultaneously when draging Activity
fix graph initialization bug
remove type casting Double due to compilation error
enable backward compatability
change model for backward compatability
read from older Model if apply
Merge pull request #171 from JieD/accumulativeGraph

Incorporate battery model into Scenario