#1069: Replaced SimpleScheduler with SimpleTimer2 in a few places

apps/BOB/src/net/i2p/BOB/BOB.java

apps/BOB/src/net/i2p/BOB/Main.java

.../i2psnark/java/src/org/klomp/snark/PeerConnectionOut.java

apps/i2psnark/java/src/org/klomp/snark/SnarkManager.java

.../src/net/i2p/client/streaming/impl/ConnectionHandler.java

...rc/net/i2p/client/streaming/impl/MessageOutputStream.java

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

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

router/java/src/net/i2p/router/peermanager/PeerManager.java

...er/java/src/net/i2p/router/transport/udp/UDPReceiver.java

router/java/src/net/i2p/router/util/DecayingHashSet.java