adaptation to iterator move using atomics to manage prefetch opportunities.
Save ref at iterator creation, reuse in iterator_move
code still crashes.  checking in for sharing purposes.
crash / missing values fixed thanks to Joes support.
Fix iter_move_task_t memory leak under certain code paths
Add reuse of iterator work item, remove placement ctor/dtor
made write_task_t destructor virtual (think it was leaking).  added comment from another branch to explain signalling choices
temporarily remove atomic function wrappers.  breaks solaris, but otherwise performs well.
correct 5 locking calls.  This fixed throttle problem that appeared in leveldb.
clear unused variable error.
Add more OTP versions to the build.
R15B03 is not available yet.
Add verbose eunit output
move leveldb branch with most of the warnings fixed
work tasks cleaned up, mutexes removed.  threading code still needs same and out-of-order db/iterator close requires coding.
fix for seek first
Fix VM crash caused by sending an exception as a message
Use optimized selective receives for async results
establish Linux/Solaris templates for atomic operations again
merge with jdb changes