Initial commit for reverting to modal task execution
Significant revamping of modal task dialog
Fixed task dialog UI issues: dialog size is constrained and progress bar is set properly
Dialog will be closed after cancel.  This is necessary because user cannot close dialog manually.
Removed unused debug message
Switched task dialog back to JLabel and enforce dialog size through preferred size of JLabel
Message text field has been changed to JEditorPane to reflect content size.
Message label back to JLabel
Cleaned up a little progress setting
Added task monitor message icons
Removed Future cancellation from SwingTaskMonitor
Added cancel label
Moved cancel and close operations code over to task monitor; moved auto close clsoe to task monitor
Fixed issue with thread blocking when cancelling first task in iterator
Updated task dialog interface
Unplugged task status bar from old task manager implementation
Added task history data structure
Added status bar clear timer
Added task status bar notifications
Added task history tracking