- Split up Updater and Checker interfaces

.../java/src/net/i2p/router/update/ConsoleUpdateManager.java

...rconsole/java/src/net/i2p/router/update/DummyHandler.java

...erconsole/java/src/net/i2p/router/update/NewsFetcher.java

...erconsole/java/src/net/i2p/router/update/NewsHandler.java

...console/java/src/net/i2p/router/update/NewsTimerTask.java

...e/java/src/net/i2p/router/update/PluginUpdateHandler.java

...le/java/src/net/i2p/router/update/PluginUpdateRunner.java

...java/src/net/i2p/router/update/UnsignedUpdateChecker.java

...java/src/net/i2p/router/update/UnsignedUpdateHandler.java

.../java/src/net/i2p/router/update/UnsignedUpdateRunner.java

...console/java/src/net/i2p/router/update/UpdateHandler.java

...rconsole/java/src/net/i2p/router/update/UpdateRunner.java

core/java/src/net/i2p/update/Checker.java

core/java/src/net/i2p/update/UpdateManager.java

core/java/src/net/i2p/update/UpdateMethod.java

core/java/src/net/i2p/update/UpdateTask.java

core/java/src/net/i2p/update/UpdateType.java

core/java/src/net/i2p/update/Updater.java