Patch to hold overlapped files in the file cache
fix issue with unintentional, extra ref count.  add code to purge Linux page cache of compaction inputs
move fadvise() call before close() (duh).  reduce higher level file sizes by 10x to spead random opens
failed to lower extension limit by 10x when I lowered file threshold sizes by 10x
address grammatical error (repeated words) in comment block
Patch sst_scan tool for new API compability.
Merge branch 'mv-filecache-tuning2' of github.com:basho/leveldb into mv-filecache-tuning2
Correct release of extra ref on overlapped files for case where multiple background threads might be attempt to Evict the same file.
merge double fix of same line
Merge pull request #79 from basho/mv-filecache-tuning2

Mv filecache tuning2