sysadmin: remove old and unused apache stuff
sysadmin: remove documentation now covered by config mgmt
sysadmin: remove outdated Pagely docs
sysadmin: rearrange some howtos
sysadmin: remove ancient "brainstorming"
sysadmin: properly title backups page
Move blogfarm guide to guides
sysadmin: remove useless AWS "documentation"
sysadmin: remove reference to Google Spreadsheet
sysadmin: move S3 doc into howtos
sysadmin: move feedburner document
sysadmin: remove hopelessly outdated workflow doc
sysadmin: reinstate outdated service lifecycle doc