Added questions / comments
Removed unused line from jcache documentation
Changed AtomicLong to AtomicLongFieldUpdater for memory usage
Changed comments to todo
fixed checkstyle
Fixed statistics reset
fixed compile errors after renaming
Renamed toggle methods for management and statistics to be less confusing
Renamed more confusing namings
Deserialization constructor readded
Merge pull request #3837 from noctarius/jcache-comments

JCache todos and first cleanups