Enhancement

- Added new _ids command to support tab completion scripts.

src/main.h

@@ -64,6 +64,7 @@ std::string handleCompletionProjects ();
 std::string handleTags ();
 std::string handleCompletionTags ();
 std::string handleCompletionCommands ();
+std::string handleCompletionIDs ();
 std::string handleVersion ();
 std::string handleDelete ();
 std::string handleStart ();