Merge pull request #82 from it-workshop/wp/81/1

#81: Change values and json with jsoncpp.

(cherry picked from commit 2883f958c985cfdd30b31c9e97e5669d2fe0b59f)
Merge pull request #84 from it-workshop/wp-1.0.0/81/1

Merge pull request #82 from it-workshop/wp/81/1