[enh] Enable compat with Android SDK 29 (use AndroidX instead of support-v4)

[fix] Do not start currency service when waiting BMA (node can be changed by user)

[fix] Network: avoid images to wink, on peer/block items (remove ':rebind:' prefix in avatar binding)
[enh] BMA: use a specific cache prefix
[enh] ES http, graph: always use a cache prefix, and clear cache when ES node changed
[enh] Refactor code that use cache (always use csCache.constants, distinguish of request by path cache, etc.)
[enh] Disable rebind in on <ng-template>, when not need (add a prefix '::' before template path)

[fix] Release: Fix extension sign return (do not exist when submit failed, because it's a normal exit status)
[enh] Release: allow to exclude windows asset, when building desktop

[enh] No more include feed into release artifact, but load it feed from repo (/doc/feed/)

- Add gulp task for deployment to playstore
- Add release deployment script

- Add build time on JS path - Fix #55
- Remove menu footer on mobile device - fix #47
- Currency explore: remove duplicate layout for large screen UI - Fix #18
- Build: add minfy, useref and ngInject
- Build: add gulp task 'build:web', that genrate a ZIP for web site deployment
- Generate templates and i18n info JS file