Renames the challenge problem to use group as a variable name instead of class.
Make scaffold/migrate/server separate steps.

Many students at the intermediate railsbridge were accidentally pasting the three lines as one and ending up with a very strange migration. I've made these separate so that it is more clear that it is 3 distinct steps.
Merge branch 'patch-1' of https://github.com/jessetoth/docs into jessetoth-patch-1
Updated for Windows 8 based on Feb. 8 InstallFest in San Francisco

  - Instructions to install Node.js for Windows 8 only to address
    coffeescript compilation error (even on empty files)
Advise Windows 8 users to reboot after installing Node
Fix sidebar links on /docs site
Update Devise instructions for newest version and correct some mis-numbering
Adding more discussion topics and hints around creating posts for intermediate curriculum.
Merge pull request #162 from jessetoth/add_to_make_post_instructions

Intermediate curriculum: adding discussion topics and hints around creating posts
Merge branch 'update_devise_instructions' of https://github.com/jessetoth/docs into jessetoth-update_devise_instructions
Remove use of hashrocket in 'Delete' link code

These days, the "Destroy" link for a scaffolded object defaults to using
new-style symbol syntax.

This also changes the link from
  confirm: 'Message'
to
  data: {confirm: 'Message'}
which is the way the scaffolds currently do it.

confirm: 'message' is deprecated in rails 4.
moving the line about HTML down underneath where views are discussed. I think this is where it was meant to be placed in the first place - it doesn't make much sense under models/topic.rb
Fix markdown rendering glitch.
More consistent capitalization. Fill in missing word in title.
Merge branch 'markdown_fix' of https://github.com/mkb/docs into mkb-markdown_fix
Fix Markdown error on Ruby curriculum frontpage. Link Ruby from /docs site.
Merge branch 'capitalization_cavalcade' of https://github.com/mkb/docs into mkb-capitalization_cavalcade
Clean up TOC on Installfest site by making some changes:

Komodo edit page no longer has 'PowerPC' variant, instead linking
to Komodo Edit 8 (which is supposedly universal)

Removed highly useless "Diagnostics for Windows" page
Don't show 'Windows Colors' on TOC when linked from 'Configure Git'
   (you can now use the method link_without_toc to shadily provide
    a link without making an entry in the TOC)

Inline 'Intel or PowerPC?' page onto the 'Panther' page.
Fix typo.

The docs don't match the generated code.
Fix error output in tests.