FreeBSD installation (#1165)

* Update server.js

Eliminate requirement to CD into project directory prior to running `npm start` or `node server.js`.

* Add rc.d daemon script

Adds a RC.d daemon script to control the HomeBrewery status. Based on Andrew Pearson's Node-RED script for the same purpose.

* Create install.sh

* Update install.sh

* Update install.sh

Switch to latest version of MongoDB

* Add config items

Add config items and default values:
- web_port (8001)
- environment (local)

* Remove environment variables from rc.d

Remove environment variables from rc.d as they are now in config/default.json.

* Update server.js

Change to setting NODE_ENV; default to 'local' if not set via environment variable or in the config file.

* Remove --force option

Remove --force option from `npm audit fix`. While this has not caused any issues to date, there is no guarantee that it will continue to be the case.

* Create README.FREEBSD.md

Initial write up of install instructions. Includes instruction to `wget` from the `naturalcrit/homebrewery` project rather than the FreeBSD fork, on the assumption that the PR will be merged at some point.

* Update install.sh

Change to main project repo, on assumption that the PR will be merged at some point

* Change install directory

Change of install directory to `/usr/local/homebrewery`

* Update homebrewery

Add `dev_mode` to the HomeBrewery service, which starts the HomeBrewery project in live rebuild mode.

* Update server.js

Eliminating unnecessary debugging code, reducing line count and making lint happy :)

* Update server.js

Lint is happy, now attempting to pacify CircleCI

* Move NODE_ENV to service file; remove from server.js and config/default.json

* Remove hanging comma in config.json
Change default port assignment from 8000 to 8001 in config.json and FreeBSD service config

* Add link to FreeBSD install documenation in the main README.md file

* Fix for MongoDB package update breaking install script
Change to enable use of rcvars for NODE_ENV and PORT

server.js

@@ -14,6 +14,8 @@ app.use('/', expressStaticGzip(`${__dirname}/build`, {
 	index           : false
 }));
 
+process.chdir(__dirname);
+
 //app.use(express.static(`${__dirname}/build`));
 app.use(require('body-parser').json({ limit: '25mb' }));
 app.use(require('cookie-parser')());
@@ -230,6 +232,6 @@ app.use((req, res)=>{
 });
 
 
-const PORT = process.env.PORT || 8000;
+const PORT = process.env.PORT || config.get('web_port') || 8000;
 app.listen(PORT);
 console.log(`server on port:${PORT}`);