Merge pull request #223 from cl-lab-k/fix_regex_arg_array

fix attribute regex on Lightweight Resources
rename headers; clarify ohai 6 options
move Ohai 6 plugins to Ohai 6; remove from Ohai 7 (for now); stub Ohai 6 syntax
remove bad link
deprecate Ohai 6 plugin link
deprecate old custom topics for Ohai 6; add new
update syntax for Ohai 6
edits; remove "Install Ohai" -- it's already installed!
add link to Ohai 7 release notes
change syntax to correct version
clean up structure, add steps topic
clean up syntax descriptions; add run section for 6
move run plugin to new topic
add _status endpoint info
add sentence re: services with enable = true are restarted
stub info
edit
update _status topic; format like rest of Chef Server API endpoints
add status endpoint to chef server api
fix heirarchy