1. performance tests added
2. liferay portlet update event added
3. minor ff fixes
1. drag event returned to previous implementation due to a bug
1. first version of tooltips for links
1. tooltips for nodes
2. drag changed again (minor fix, hopefully last one)
3. highlighting for interfaces with the same hostNodeId
1. tooltip removed from lineBreak nodes
1. graph will now start with collapsed networks
2. stats div removed
3. tooltip for internetworking links