* Add Prettier formatting to source files and example files, and check that Prettier formatting is maintained on PRs
* Remove trailing-comma as we are using Node 6 on Circle
* Use latest Node 6 LTS version in Circle
* Remove unused test
* Fix custom port number parsing...
Checking if a port was in use raised a bug where the port coming in from the command line is a string and not an int. And that was causing the check to fail. Make the port an int from the get go
* Specifiy radix
Since the check is async, starting the server on the port was happening before the check finished. Thus even if the port wasn't being used, it would error out as if it was because the server would start it before the check was finished.
This way we only start the server after the check finishes.
Test:
Ran a separate server on port 3000
```
Checking if port 3000 is free...
Extracting translateable strings from files...
Loading translation files...
Generating Metadata for Docs....
Generating Metadata for Docs....
server.js triggered...
Generating Metadata for Docs....
Extracting translateable strings from files...
listening on port: 3000
Open http://localhost:3000/
Port 3000 is in use
```
Fixes#124
