[fix] Wot lookup: Better managment of tabs + enable back history on view AFTER tabs

[enh] ES: allow fallback nodes, in config
[enh] Upgrade Chart.js to v2.7.0
[fix] Map: Hide access button if plugin disable
[fix] ES Settings: detect SSL on if port=443
[fix] ES: http request will wait starts of esHttp service

[fix] Open link on desktop version - fix #533
[fix] Help tips : fix network helptip

[enh] Login:
  - better UI on pubkey preview
  - remove "show salt" option
[enh] Crypto service: allow to change Scrypt params

[enh] Add connection fallback at startup - fix #476

[enh] Join waizard: add information on peer and security

- features tour: avoid bad position icon on wot identity
- Menu: make sure item as ink effect

- Add a general button on main interface to certify identities Fix #59

- Fix help tip on small device

- Fix help tip on small device

- Currency: add block tab (small device)
- Certification : Fix tab header (small device) - fix #275

- Hide network menu entry

- Certification count (Wallet & Wot): refactoring into a component

- Help tour : close a tip do not open a new tip
- Help tour : disable automatic redirection to large screen
- ES Profile : do save in background, but ask a confirmation before leaving page

- simplify add menu link to state
- ES Message : add popover action, to delete all and marke all message as read

- Add new csCache service
- Wot : Add cache on loadIdentity()
- Wot certifications : Add time, display block only if expertMode
- Wot certifications : Split pending / valid cert - fix #191 fix #182
- Wot : do not allow to certify twice - fix #196

- ES Market: Fix "show more" behavior and style
- ES Market: view  record: Reduce title and thumbnail, on small device
 - Reduce scrypt meomory usage for old device

- Currency: move blockchain data into the second tab

 - Features tour: strange animation, under firefox - fix #189
 - Features tour: missing UD value, in first wallet helptip
 - UIUtils : allow to reuse popover (better management of deferred, on close on cleanup) or not  (avoid memory leaks)

- fix wallet header refresh, after logout and login
- ES: comment now display user avatar and name, is exists
- ES: add "share" button to popover actions
- ES: fix misspelling

- Wot identity: add compose message button, using extension
- If empty wallet : remember if user confirm
- Profile popover : externalise in ES plugin the button "My Profile"
- ES MEssage : fix reply button, in inbox screen

- Add profile popover (wide screen)

- Wot: fix search issue (do search on wide screens, even if text length < 3)
- Currency peers :  optimize refresh UI

- Add features tour
- ES: Add Settings remote storage

- Join wizard : more steps, with help button or hint text
- Unable to register on currency init (block#0 not written) fix #160