adding CakeRequest::query() and marking BC accessors as such for making future migrations less complicated
typo fix
migration guide
removed BC notes
Added that Multibyte was removed in migration guide
Added mbstring in the requirements
Removed duplicated word
Fixed typo
Merge pull request #387 from dereuromark/2.2-request

2.2 request
Added expanded info about CakeRespone::file()
Fix formatting
Updated contributing docs.
Case insensitive routes example

This topic was killing me for a long while, since the way to create 
a case insensitive URL was well documented on 1.2 but there is no 
reference in 2.0 other than using regular expressions, but I was 
not aware of how to use inline modifiers for this. The example was
provided in Stackoverflow recently: http://stackoverflow.com/questions/12526099/cakephp-routing-in-php-too
Merge pull request #390 from tomwoods/patch-1

Case insensitive routes example
Update en/models/data-validation.rst

Adding documentation about the custom validation method return values and how to change the error method within the method.
Update en/models/data-validation.rst

Explaining what the return string will be used for.
Adding a full stop dot at the end of the paragraph.
Update en/models/data-validation.rst

Typo: /faled/failed/
Merge pull request #391 from str/patch-1

Update en/models/data-validation.rst
Typos and error fixes
translate models subsection (saving-your-data) into Japanese