Update rule names and cheat sheet

[bkoelman]

• Made another pass over the rule names
• Updated cheatsheet to match with docs
  • Match bullets with rule titles in document
  • Trim trailing whitespace
  • Replace ’ with '
  • Remove occasional level-3 rule; added a few missing level 1/2 rules
  • Update casing table based on recent changes in rule
  • Update layout summary based on recent changes in rule
  • Update "empty lines" and "member order" tables based on recent changes in rule
• Removed superfluous whitespace in titles

Note that the rules (4) from Performance category are missing in the cheatsheet. Also note that the cheatsheet layout may have been broken. I followed the build steps, but that did not produce the cheatsheet PDF file.

[bkoelman]

Resolved conflicts. See notes above. Layout needs work.