shows unconfirmed email status in profile

## What does this MR do?
This MR closes #24413 
## Are there points in the code the reviewer needs to double check?
NR

## Why was this MR needed?
When modifying an account email address in profile settings a new confirmation email is sent,  and shows the information that s/he got an email to confirm.
 
## Screenshots (if relevant)
**Before**
![2016-11-22_19.54.51](/uploads/361fd605a3c1e997a58defe45a63081a/2016-11-22_19.54.51.gif)

**After**
![2016-11-22_20.01.21](/uploads/6b07663f71d6684d2138798920cf07af/2016-11-22_20.01.21.gif)

## Does this MR meet the acceptance criteria?

- [x] [Changelog entry](https://docs.gitlab.com/ce/development/changelog.html) added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if it does - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?


Closes #24413

See merge request !7611