Fix filename typo (kerbers_server.rb)
Make libpam-krb5 installation optional
Highlight Ruby usage examples in README
Add pam and machine_admins options to README
Add server usage example to README
Add explanatory text to README
Add troubleshooting section to README
Remove superfluous libpam-krb5 seed file
Merge pull request #1 from sometimesfood/fix-kerbers-typo

Fix filename typo (kerbers_server.rb)
Merge pull request #3 from sometimesfood/add-server-documentation

Add server documentation
Merge branch 'optional-libpam-krb5-installation' of git://github.com/sometimesfood/chef-kerberos