Bug #959

- Instead of checking if a date in its epoch representation has changed, 'task
  edit' checks if a date has changed in its 'dateformat' representation.
- The check has not been extended to the annotations for a technical reason
  (bug #705).

Signed-off-by: Paul Beckingham <paul@beckingham.net>

src/commands/CmdEdit.h

@@ -41,7 +41,6 @@ public:
 
 private:
   std::string findValue (const std::string&, const std::string&);
-  std::string findDate (const std::string&, const std::string&);
   std::string formatDate (Task&, const std::string&);
   std::string formatTask (Task);
   void parseTask (Task&, const std::string&);