more use of the new methods

...java/src/net/i2p/router/web/ProfileOrganizerRenderer.java

core/java/src/net/i2p/stat/Rate.java

core/java/src/net/i2p/stat/RateAverages.java

router/java/src/net/i2p/router/RouterThrottleImpl.java

...va/src/net/i2p/router/peermanager/CapacityCalculator.java

...c/net/i2p/router/tunnel/pool/ExploratoryPeerSelector.java

router/java/src/net/i2p/router/tunnel/pool/TunnelPool.java