Merge pull request #9 from nhannguyen/master

Fix hostname and port
default python 2.7 for ubuntu 12.04
enable update check for centos
Merge pull request #13 from nhannguyen/master

Add ubuntu, debian, centos package installation for redis
move custom entries above default entries
support local config
Enable installation of different version of gitlab (up to 4.2)
add required packages
chef runtime needs ssl
Merge remote-tracking branch 'nhannguyen/gitlab'