Added specify information message if the user tries to select a template for an existing issue.
The 'Duplicate' button is disabled on the 'Hierarchy View' page if the project does not support the following issue type.
The 'Please confirm that you wish to delete this Scheduler. This cannot be undone' message is shown on the 'Delete Scheduler' dialog.
The hierarchy with the system variables is applied, the variables are changed to the appropriate values.
The 'Add Child' button is active in the copy node row on the 'Create Hierarchy' page.
The project is not changed on the 'Manage Hierarchies' page after clicking the 'Cancel' button in the 'Change project' dialog.
The required 'Owner' field is marked with the asterisk on the 'Confirmation' dialog after clicking the copy image on the 'Manage Templates' page.