[fix] Fix locale image flag

[enh] QRCode: Change the JS lib, and generate as SVG
[enh] QRCode: Generate SVG when loaded wallet data
[enh] QRCode: toggle in fullscreen, on small screen

[enh] QRCode: Change the JS lib, and generate as SVG
[enh] QRCode: Generate SVG when loaded wallet data
[enh] QRCode: toggle in fullscreen, on small screen

[enh] Menu: Move action buttons to top, on small screens
[enh] Menu: Change "Transfer" button, on large screens
[enh] Home: change button's color, when login

[fix] Home: fix locale flag path
[fix] Fix cleanCache when changing ES node

[fix] Home: fix locale flag path
[fix] Fix cleanCache when changing ES node

[fix] BMA, ES http: avoid to restart service to often, if not need (e.g. when changing node from Settings)
[fix] BMA: make sure to clean cache request
[fix] ES Http: make sure to clean cache request
[fix] Network:: avoid to create a new BMA instance, is same as default BMA node
[enh] ES http: add latest URL management

[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)

[enh] Position edit: avoid to open modal twice

[fix] Force loading message to be hide, when wallet has been loaded sucessfully, or when error has been catched

[enh] Help tour: adapt tour to the new menu layout (start with wallet, tx, etc.)
[enh] Wallet QRCode: faster animation, when click on a QRCOde
[enh] Wallet: better explanation in Cesium+ help icon, with new link to Cs+ network view
[fix] profile: store HTML description inside a new attribute, to avoid saving it
[fix] Locale flag: use local image file
[fix] Locale flag: add EO flag - fix #887
[fix] Settings: enable cache persitence option, in small device

[enh] Update the feed FR (from post : https://forum.monnaie-libre.fr/t/cesium-evolue-aie-ca-va-piquer-mais/10015)