Merge pull request #2 from jBOKA/patch-1

Update readme install instructions

Rename methods, update readme

Minor improvements

Fix some stuff

Move has_domains to Plugin model

Fix crontab_dir

remove .gitmodules, several fixes & improvements

Some changes

Change nginx conf path back to custom.d

Forgot `;`

use domain field value

Fix nginx conf, change nginx conf path

Change debian dir for nginx conf to nginx.custom.d/

Fix nginx conf: add `listen`