* Dapps web
Conflicts:
dapps/src/apps/fetcher.rs
dapps/src/handlers/fetch.rs
* Rewriting fetch
* Parity-wide fetch service
* Obey the limits and support cancellation.
* Removing temporary files.
* Actually use Fetch for dapps
* Re-implementing file fetching to avoid temporary files.
* Serde to 0.8.19
* Fixing content & dapps fetch
* Serving web content and injecting scripts
* Don't wait for old content, start a new download
* Supporting timeouts and query
* Simple GUI for the browser
* Proxy tokens validation
* Recovering from invalid web-based requests
* Remember last visisted URL
* Removing unused variables
* Addressing review comments
* Setting default account in web3
* Adding WebBrowser dapp to the list
* Actually prune old entries when generating new token
* Refactoring dapps to support API endpoints.
* Using ContentHandler for unauthorized requests
* Extracting url stuff
* Adding ping endpoint
* CORS support for ping request
* Fixing url.is_none()
* minor formatting fix
[ci:skip]
Gav Wood
Robert Habermeier
Tomasz Drwięga
Gav Wood