Util: Convert more caches to TryCache (ticket #2263)

core/java/src/net/i2p/util/ByteCache.java

core/java/src/net/i2p/util/SimpleByteCache.java

core/java/src/net/i2p/util/TryCache.java

history.txt

router/java/src/net/i2p/router/RouterVersion.java

...r/java/src/net/i2p/router/tunnel/TrivialPreprocessor.java