Import wiredtiger-wiredtiger-2.4.0-169-g2820466.tar.gz from wiredtiger branch develop
Merge branch 'vendor-wiredtiger' 2.4.0-169-g2820466

Upstream commit 2820466e1389fa202fb092863c4a96c6739cb215
Merge pull request #33 from markbenvenuto/wt_vendorize

Wt vendorize