Fixed isCurrentBranchUpToDate(). Rethrow exceptions thrown during upgrade process.
Merge branch 'hotfix/0.2.3'
Merge tag 'v0.2.3' into develop

Fixed isCurrentBranchUpToDate()
Created pages to view all deployments, all deployment releases and all release upgrades.
Added Node model and page to display node upgrades for deployment.
Merge branch 'feature/http-frontend' of github.com:simplyintuitive/cloud-deploy into feature/http-frontend