Modify wasm_tests to use our local wasm_exec file instead of the systems. We should not need to do this but there is a dependency somewhere forcing older 'go' module and that is causing an error when instantiating webasm in the tests.

npm package config

See merge request !141

# Conflicts:
#   package-lock.json
#   package.json
#   storage/version.go

Remove the workers in jsutils in favor of functions in src/workers.js, modify the paths to load blob urls of the workers

There are parts from webpack we don't control which start with a /, so we'll go with making sure all our paths prepend a / instead.

This reverts commit ce7da9b2.