Merge branch '3.2.x'
* 3.2.x:
[ticket/14875] Add raw_variable() to request mock
[ticket/14875] Move raw_variable() method to request_interface
[ticket/14875] Use raw_variable() method in _variable() to get raw data
[ticket/14875] Add method for raw input to request and add to installer
[ticket/14875] Add method for untrimmed input to ajax iohandler
Merge pull request #4539 from marc1706/ticket/14875
[ticket/14875] Add method for untrimmed input to ajax iohandler
* marc1706/ticket/14875:
[ticket/14875] Add raw_variable() to request mock
[ticket/14875] Move raw_variable() method to request_interface
[ticket/14875] Use raw_variable() method in _variable() to get raw data
[ticket/14875] Add method for raw input to request and add to installer
[ticket/14875] Add method for untrimmed input to ajax iohandler
[ticket/14875] Use raw_variable() method in _variable() to get raw data
The raw_variable() method uses the same exact code the _variable method
has been using until now.