Show icons and tags for posts

Put bootstrap icons and show tags of posts again.
Look for the visual diference:

### Before this commit:
![Before](https://cloud.githubusercontent.com/assets/3275172/4882249/ac108300-6353-11e4-8572-1f0a596a9072.png)

### After this commit:
![After](https://cloud.githubusercontent.com/assets/3275172/4882255/c0535a68-6353-11e4-975c-bc2cb063163f.png)

It's turn the template more cool :sake: