Add missing keyboard shortcuts on OS X

DefaultKeyBinding.dict

/*
  Create this as a file ~/Library/KeyBindings/DefaultKeyBinding.dict
  Then restart your computer.
  NOTE: ~ means alt/option
        ^ means ctrl
*/
{
        "~f"="moveWordForward:";
        "~b"="moveWordBackward:";
        "~<"="moveToBeginningOfDocument:";
        "~>"="moveToEndOfDocument:";
        "~v"="pageUp:";
        "~d"="deleteWordForward:";
        "~^h"="deleteWordBackward:";
        "~\010"="deleteWordBackward:"; /* Alt-backspace */
        "~\177"="deleteWordBackward:"; /* Alt-delete */
}