Refactored mouse handler for input and output connectors into a single fn.
Now only using 1 svg path to represent either input or output connector.
Moved connector size to the datamodel.
Added a jQuery fn for hit testing.
Added a border around the flowchart control to test relative mouse coordinates.
Removed unnecessary styling.
Modified the hit test function so that it can filter a jquery wrapped set based on what was hit.
Added some simple mouse over hit testing to try out ideas for retrieving the hovered connector.  Added 'connector' class so that I can traverse up the element tree to find the parent connector of the hovered element.
Removed the hit testing function I was trying out earlier.