Fixed an issue that caused the warning: PHP Warning:  usleep() [<a href='function.usleep'>function.usleep</a>]: Number of microseconds must be greater than or equal to 0 in ...\task-scheduler\include\class\event\server-heartbeat\TaskScheduler_Event_ServerHeartbeat_Loader.php on line 157
Updated the Admin Page Framework library.
Rephrased a option label.
Removed redundant lines.
- Changed it to display module description in the form field.
- Fixed an issue that the `Change` button did not appear when the `Debug` action is selected.
Changed the stable version.