Renaming project from Orangejuice to Lingon

Do not merge this PR, let's use it for communication around renaming until all pieces are in place. I'm trying to do everything in the following order: 

* ~~Refactor codebase with new name~~
* ~~Purchase domain: lingon.io~~
* ~~Create lingon npm module~~
* ~~Rename this repository (and sub projects: templates, plugins, etc)~~
* Merge this PR
* Manual test test test
* Deprecate orangejuice in npm

Change-Id: Ib165bf1e73e5d95285a1842df80e59d942037cb3