Add Ruby 1.9.3 recommendation
Fix broken images links
Add model creation step to getting started guide
be sure to currectly fetch PK name from MySQL even if the PK has some custom option
Merge pull request #5900 from amatsuda/ar_mysql_pk_with_using_option

current MySQL driver fails to fetch PK name when the PK has USING option
removed extra "you"
Add "Saving data in the controller" section
Fix example in ActionView::Helpers::FormHelper
Adapt "Getting started guide" code sample
New Getting started guide wont have tags
Add show action in getting started guide
Add index and links section to Getting started guide
Merge branch 'master' of github.com:lifo/docrails
in feedback solicitation text, correct that docrails is fork, not branch
Freeze the middleware stack after it's built

So apps that accidentally add middlewares later aren't unwittingly dumping them in a black hole.

Closes #5911
Merge pull request #5865 from tiegz/minor_fixes

Catch nil.to_sym errors in partial_renderer, and raise ArgumentError instead
Comma missed
Remove circular require of time/zones
Add model validation section to Getting Started guide
Add validation code to getting started guide and improve validation
section