Merge pull request #17 from BaBuDe/master

(bug) try again to fix connection string
Merge pull request #18 from BaBuDe/master

(bug) find error in index.js
Merge pull request #19 from BaBuDe/master

(bug) update package.json
Merge pull request #20 from BaBuDe/master

(bug) last fix on db connection in index.js
(bug) try different db connection