added goleveldb on database section #27
thanks @JensRantil
Merge pull request #28 from hugoleodev/master

Adding the Go-MailHog
Add pongo2 and remove pongo
Merge pull request #29 from flosch/add_pongo2

Add pongo2 and remove pongo
Merge branch 'master' of https://github.com/hugoleodev/awesome-go

* 'master' of https://github.com/hugoleodev/awesome-go:
  Adding the Groupcache

Conflicts:
	README.md
Create a QA section and added the GoLint