Bump version to 5.0.0-beta.4 in package.json 

Merge pull request #506 from node-red/create-pull-request/patch 🚀 Update to Node-RED 4.1.7 release

Merge pull request #505 from node-red/rel50b3 Bump for 5.beta.3

Merge pull request #504 from node-red/create-pull-request/patch 🚀 Update to Node-RED 4.1.6 release

Merge pull request #503 from node-red/create-pull-request/patch 🚀 Update to Node-RED 4.1.5 release

Merge pull request #502 from node-red/create-pull-request/patch 🚀 Update to Node-RED 4.1.4 release

Merge pull request #501 from node-red/rel5b2 bump for 5.beta.2

Merge pull request #499 from node-red/create-pull-request/patch 🚀 Update to Node-RED 4.1.3 release

Update for 5.0.0-beta.1 (#498) 

Bump version to 5.0.0-beta.0 in package.json