add /sandbox endpoint, that will handle uploading
add /sandbox endpoint, that will handle uploading
fix upload command
iframe styling and gadget manifest component
check for gadgetPath is not null
Make icon in gadget-manifest draggable
Extract gadget-box
use semver and latest launcher
introduce sandbox endpoint
add gadget-box.html
Merge branch 'feature/upload-with-preview' of github.com:Versal/sdk into feature/upload-with-preview

Conflicts:
	src/local-api/sandbox.coffee
	test/api_spec.coffee
add feedback about the operation result
Return sensible error messages
Merge pull request #45 from Versal/feature/upload-with-preview

Feature/upload with preview