Tell people not to be the BOFH.

This is a start to the "how not to be a sysadmin" section. I've tried to
achieve some balance between useful guidance and preaching.
Merged my changes into the existing crontab doc
Broke up long lines
Attempted to match line breaks from upstream
Adding my name to the contributions file
Merge pull request #52 from jordandm/patch-1

Update shell_tools_101.rst
adds initial content to databases_101, rough
Merge pull request #53 from jordandm/master

Added self to contributors; various fixes.
Removed section on role of sysadmin in org and incorporated it into what SA isnt, cleaned up todos
Merge pull request #55 from patcable/sa101

What System Admin isn't
Restructuring: Moving backups under Business Continuity Planning, and added disaster recovery, outages and postmortems
updating index.rst
adding titles to the new files
New branch, re-commit: Updated several sections I had TODOs to complete and reshaped some earlier content. Removed the fancier terminal colors block as I think that's more advanced than 101v content. Added Avleen's previous spellchecks too.
Merge pull request #58 from avleen/master

Slight restructure.
Typo: Intrustion -> Intrusion
Merge pull request #61 from macintux/master

Minor typo fix
Wide variety of tweaks, primarily for consistency
Update soft_skills.rst

Added new "Learning and strategies for improvement" section.
Added general tips for improvement.
Added a number of resources for learning, getting help, etc.
Created golden rules section.
Update soft_skills.rst

Fixed line wrap.