Bug #656

- Fixed bug that caused multiple recurring child tasks to be generated
  under certain circumstances.
- Removed text.t.cpp tests that are not in task.
- Added Bryce Harrington to AUTHORS file.
- Corrected tests that were broken by the fix.

test/recur.until.t

@@ -43,10 +43,10 @@ qx{../src/task rc:recur.rc add foo due:now recur:2sec until:5sec};
 diag ("Sleeping for 6 seconds");
 sleep 6;
 my $output = qx{../src/task rc:recur.rc list};
-like ($output, qr/^\s+1/ms, 'Found 1');
 like ($output, qr/^\s+2/ms, 'Found 2');
 like ($output, qr/^\s+3/ms, 'Found 3');
 like ($output, qr/^\s+4/ms, 'Found 4');
+like ($output, qr/^\s+5/ms, 'Found 5');
 
 qx{../src/task rc:recur.rc do $_} for 1..5;
 $output = qx{../src/task rc:recur.rc list};