Dependency updates

[geographika]

• updates proj4js to latest version
• moves the linting dependencies to devDependencies
• moves browserify to dependencies. This was moved as npm install was giving me:

npm ERR! command C:\Windows\system32\cmd.exe /d /s /c npm run build:turf
npm ERR! > @compassinformatics/cpsi-mapview@1.3.0 build:turf
npm ERR! > browserify turf-builder.js -s turf > lib/turf.js
npm ERR! 'browserify' is not recognized as an internal or external command,
npm ERR! operable program or batch file.

The package-lock.json has also been added to the project (and removed from .gitignore).

Also bumps the mapview version to 1.3.1.