Download network dapps and load them from filesystem (#144)
* Download network (registry) dapps and load them from filesystem * Remove obsolete Rust files * package-lock.json * Linting * Fix tests * Lint * Fix .includes() is not a function (:88) * Remove rust files from CI build * Update @parity/ui dependency * Grumbles * Restrict in-frame navigation for dapps (#146) * Restrict in-frame navigation for dapps * Lint * Grumbles * fs-extra pathExists doesn't throw if the path doesn't exist * Fix bug uglifyjs