Added links, reformatted nosql

I added several links to various areas, and reformatted the nosql
section to show the types of noSQL engines.
Added Gogs git server.
Suggest DREBS to the backup section

http://dojo4.com/blog/aws-ebs-backups-we-rewrote-drebs for more info.
Adding mesos under cloud computing: http://mesos.apache.org/
Added Postgres-XL

http://www.postgres-xl.org/
Updated README.md: Added OpenTSDB
Adding Docker: An open platform for distributed applications for developers and sysadmins.
Removed docker: duplicate
Update README.md: Added Heka

# closes #72
added emacs to editor suggestions
Add a link to Clusto, a CMDB
Adding ZPanel
Added MogileFS

Added MogileFS to network distributed filesystems
updated mogilefs link

Changed from mogilefs.com to mogilefs.org
Merge pull request #73 from icholy/master

Added Gogs git server.
Merge pull request #74 from milesmatthias/master

Suggest DREBS to the backup section
Merge pull request #75 from mageru/master

Added Postgres-XL
Merge pull request #77 from johann8384/patch-1

Updated README.md: Added OpenTSDB
Added Bazaar
Fix small typographic error