(feature/languagePage) Add test language page with 4 charts
added comments to handler.js
(doc) documented handler.js
(doc) increase readbility of handler.js documentation
(doc) added documentation to server.js
Merge pull request #40 from myclamm/mikeBranch

Mike branch
(feature/languagePage) Add test language page with 4 charts
Merge branch 'feat/languagePage' of https://github.com/wykhuh/GoldenLions into feat/languagePage
Merge pull request #41 from wykhuh/feat/languagePage

(Feat/language page) Add test language page with 4 charts
Merge branch 'master' of https://github.com/Chunhao137/GoldenLions