Move configuration options to config.js.
Fix issue #166 - configurable threshold in objDisplay.
Merge pull request #251 from romario333/threshold3

Fix issue #166 - configurable threshold in objDisplay.
docs: [config] make public, express param type
util: [getActual] select actual logic now allows undefined for actual. Closes #183
deps update
Release 1.9.1
Automatically rewritten for npm.