Merge commit '56d5090645abe716d022fdf28b593e576ac1a1a3' into stable-1427

Conflicts:
	src/freenet/client/async/ClientRequestSelector.java
	src/freenet/client/async/DatastoreChecker.java
	src/freenet/client/async/SplitFileFetcherSegmentGet.java
	src/freenet/node/FNPPacketMangler.java
	src/freenet/node/NodeStats.java
	src/freenet/node/PeerManager.java
	src/freenet/node/PeerNode.java
	src/freenet/support/FileLoggerHook.java
	src/freenet/support/PrioritizedSerialExecutor.java
	src/freenet/support/PrioritizedTicker.java
	src/freenet/support/transport/ip/IPAddressDetector.java
	test/freenet/crypt/PCFBModeTest.java
Merge commit 'build01428' into stable-1429
moves start() and setUserAlertManager() into the FreenetStore API
add empty start() and setUserAlertManager() in NullFreenetStore, RAMFreenetStore and SlashdotStore
change from SaltedHashFreenetStore to FreenetStore in Node
add setAltStore(FreenetStore<T> store) to FreenetStore API
LoggerHookChain: fix changing log threshold

1) we filter everything in LoggerHookChain, so we need not bother
subordinates;
2) setting threshold but not setting detailed threshold confuses subordinates;
Node: fix typo in class name
delete setAltStore() in FreenetStore API and revert some classes, add getUnderlyingStore() in FreenetStore API
Merge remote branch 'voxsim/refact-FreenetStoreAPI' into next
Delete very old back compatibility code for migration from pre-2008 saltedhash datastores.
add a new store: CachingFreenetStore
wrap SaltedHashFreenetStore with CachingStore in makeStore
CachingFreenetStore: change maxSize and size in long, delete getter and setter of MaxSize, fix cacheMaxSize in Node too
Turn on verbose mode for findbugs, and allocate more memory for it
make cachingFreenetStoreMaxSize configurable
add throw new NodeNeedRestartException in set of cachingFreenetStoreMaxSize because it cannot be changed on the fly
change cachingFreenetStoreMaxSizeLong to cachingFreenetStoreMaxSize
Clarify/update comment.
modify size when collisionPossible is true and overwrite is false