[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.
[confluence] Change keyboard label to edit control, see #5008
[videodb] adds UpdateLinkTable/UpdateActorLinkTable to video database
[videodb] adds UpdateDetailsForMovie() and calls it from JSON-RPC to more efficiently update movies.

Link tables are only updated if they need to be.
[videodb] only update art table if needed
[json-rpc] Pass an UPDATE_ITEM message rather than a general UPDATE message when a movie item has been updated over JSON-RPC.
[dbwrappers] have query() take a std::string, we copy direct into a std::string anyway in the functions
[videodb] switch actor and actor link tables to the new layout
[videodb] tidy up GetCast()
[videodb] cleanup GetPeopleNav to use new link setup
[videodb] switch the studio and link tables to the new format
[videodb] switch the genre and link tables to the new layout