[fix] restore certification access (using a ng-click) - need for help tour

[fix] TX view: add special style for pending TX
[fix] refactore service TX download history

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

[enh] Subscription: ask confirmation before deletion

- Security wizard: do not allowed to revoke a anonymous account

- Optimize code for HTTPS redirection, and remove it for device build

- Invitation: do not show message if cancelled

- fix js error on new notification
- UI: better ink item selection
- Hide certify button if identity has no self document - fix #354

- i18n: rename 'protection phrase' with 'secret identifier'
- ES Profile: Display hashtag and usertag as link
- Wallet+Identity: faster motions

- remove certification tab (use simple view instead) - fix #327

- Wallet: fix popover actions

- Block list: avoid duplicate add, when new block appears

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

- Fix help tip on small device

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

- Wallet : fix revocation, and error management
- ES comment: add comment number. Hide "more comment" when no more comment
- change icon for share buttons

- Wallet: reload TX when some settings changed (showUDHistory)
- display 2 decimals in common unit - fix #233