Display error messages

We need to discuss how exactly(UI part) show an error and what to display in that error. When we decided to implement this feature is good to split this task in few smaller.

Places where good to have errors notification:

1. Upload image
2. Delete user
3. Block user
4. Ignore user
5. Send post
6. Send like
7. Create group
8. Create circle
9. Update circle
10. Create gallery
11. Send invitation to circle
12. Send invitation to group
13. Update password
14. Update email
15. Update name
16. Can not load posts
17. Create user
18. Login failed
19. Resend failed

As an example of library: [https://github.com/calimarkus/JDStatusBarNotification]