Added instrumentation to cache freespace calculation
Added RMSCache fix, it was including a dependency related to logging which was not found
Additional instrumentation of cache clean
Handle no-more-LRU better instead of throwing null pointer
Refactor to move accessOrder LRUVector from StaticCache level to FlashCache level

We want the accessOrder to contain only items actually in flash memory. We loosly couple the delete process between heap level and flash level (which is synchronized only after slow tasks complete) by asking the flash level for a list of digests that would add up to as much space as we want to clear from the cache. We then delete those object from the help level and check how much space we actually free in the process. This is more robust against concurrent updates such as queued writes, or cases where heap may contain something not yet in flash (we try to delete it, but it isn't actually stored yet so we can't delete it).
Add .toLong() needed by JME but not JSE
Update to keep accessOrder up-to-date, thus enabling the 5M cache limit
Debug info updated. Fixed an error not putting the digest Long but something else into accessOrder
LRUVector class and test fix to affect FlashCache accessOrder as really least recently used
More instrumentation to show current state as we prediodically limit cache size
Added LRUHashtable which is a hashtable with least-recently-used order
Fixing some cleanup issues during shutdown
Don't change the LRU order when removing items from the LRUHash in FlashCache
Track rms size
Added header comments with copyright
Merge branch 'idle-cache-clean' of ssh://source.nokia.com/WhereSuite-for-S40/git/Tantalum into idle-cache-clean
Added LRUHashtable unit tests
Added debug documentation
User Worker.threadDeath to detect hung threads on shutdown

Added debug to show what Worker and task is not completing in slow shutdown cases

Removed unnecessary locking during StaticCache close that was possibily associated with slow shutdown
Shutdown slight speed tuning
Remove one log line on shutdown, was confusing