[edit] adds support for GUI_MSG_INPUT_TEXT style input on edit control (OSX special-input)
[edit] align edit control handling of characters with the keyboard dialog
[edit] use SetStyledText() to set the edit control label
[edit] if entering a password via SMS, show the current letter rather than *
[edit] adds select/highlight of edit while entering special characters on OSX
[edit] support ACTION_CURSOR_LEFT/RIGHT in CGUIEditControl
[edit] adds support for always showing the cursor in edit controls, rather than only when focused
[keyboard] use a CGUIEditControl for the keyboard dialog
[keyboard] drop the input.remoteaskeyboard setting as no longer required.
Merge pull request #5008 from jmarshallnz/edit_keyboard

Use an edit control in the keyboard dialog