Initial commit
Initial files
changes to reDraw method and modify button added
added some transition
transition for links and nodes works fine
test data for modifyData added to controller
issue fix for circlle and text appending more than once
test data update
test data update
reference issue fixed
common methods added
transition duration changed and other small changes
render and reDraw clubbed into one method, it varies based on a reDraw boolean
support for node types added and delete data button and test data added
transiton duration modified
link and node code modified for redraw
code related to nodesize are added and commented out
support for different node shapes based on the node type in data
issue fix for all paths changing when  links are updated
code now using the nodesize instead of tree size