+ DB:
- modified, add table news_userinteract
- some other changes (index cat_id field in news_links for faster JOIN),
...

+ API:
- hideNews
- restoreNews
- modify getSection api: logged in, not logged in

+ Code:
- CSS: new file mini-fixes.css: css for original content of libraries
(like bootstrap, notifications, ...)
- Login, logout: refresh data
- Notifications: created a dedicated view
- Bootstrap-notify: fix to remove timeout on hover, mouseout->timeout to
fade out again
- Helper: fix showNotification function to support html
- HideNews and RestoreNews for logged in user
- Only logged in users can hideNews
- templates: add 'blank' template (for using with views like
NotificationsBottomRight View)
- fix logout function: logout -> authenticated = false (userModel)
- ...
Merge branch 'master' of https://github.com/huyntvn13/ci_newsbuddy
Merge branch 'master' of https://github.com/huyntvn13/ci_newsbuddy