* 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

Tomasz Drwięga authored Dec 20, 2016 and Arkadiy Paronyan committed Dec 20, 2016

* Ignore dapps_policy.json

* Produce warning for non-ignored files

- Wire up platforms to match those of CI.
- Introduce "final" feature to tag version with "nightly".