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.
[ticket/14875] Add method for raw input to request and add to installer
A method for retrieving raw input has been added to the request class.
This will be used in the installer to retrieve the datatabase password
while also allowing utf8 characters. Not escaping the input is ok in
this case as it won't be put anywhere in this raw form and only be
used to populate the entry for the password field in config.php.
