Update README.md

Add Foreman and Cobbler.
Update README.md

Introduce https://github.com/allegro/ralph as CMDB, Asset management software
Update README.md

Added Varnish cache.
Added analog and webalizer
Added DadaMail to "Newsletters" category
Added BeanstalkD queue
Merge pull request #55 from pgodel/master

Added analog and webalizer
Reorganize Log Management, fixes #54
Merge pull request #58 from kohenkatz/patch-2

Added BeanstalkD queue
Merge pull request #53 from denisbr/patch-1

Update README.md - With Varnish Cache server
Merge pull request #56 from freeman512/master

Update README.md
Merge pull request #57 from kohenkatz/patch-1

Added DadaMail to "Newsletters" category
Some corrections
Merge branch 'patch-1' of https://github.com/wendigo/awesome-sysadmin into wendigo-patch-1

Conflicts:
	README.md
Merge branch 'wendigo-patch-1'
Merge branch 'master' of https://github.com/ashayh/awesome-sysadmin into ashayh-master
Merge branch 'ashayh-master'
Adding Cabot, an OSS Pager Duty
Typo
Merge pull request #59 from devo-ps/master

Adding Cabotapp.com, OSS PagerDuty clone