Link to trending public projects so more relevant projects are shown to new users.
Improve visual detection of CI status

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch 'improve-ci-widgets' into 'master'

Minor improvement of CI widgets UI

Before:

![Screenshot 2014-10-17 20.20.14](https://dev.gitlab.org/uploads/dzaporozhets/gitlabhq/4770ae1223/Screenshot_2014-10-17_20.20.14.png)

After:

![Screenshot 2014-10-17 20.20.19](https://dev.gitlab.org/uploads/dzaporozhets/gitlabhq/76018ef7f7/Screenshot_2014-10-17_20.20.19.png)

See merge request !1194
Merge branch 'link-to-trending-projects-instead-of-all' into 'master'

Link to trending projects instead of all

See merge request !1192