refactor: no need to install mocha globally.
refactor: no need to install mocha globally.

Once npm install called, mocha is installed as dependency in node_modules. `npm test` works then directly.

ldez/socrates-craft-rochegude,FranckErnewein/socrates-craft-rochegude,ldez/socrates-craft-rochegude,FranckErnewein/socrates-craft-rochegude