Correct 'with-lock' example
Merge pull request #79 from gorsuch/master

Correct the 'with-lock' example (gorsuch)
Fix dead `wcar` ref link, remove unnecessary destructuring (Jan Rychter)
EXPERIMENTAL: Bump to commons-pool v2.2
Deps: Encore 1.3.0
New lock-free conn pool cache
v2.7.0-SNAPSHOT