Recommendation Tracker Code

added fields to align with xccdf as used in 800-126

added fields to align with xccdf as used in 800-126

added fields to align with xccdf as used in 800-126

Fixed Bug # 2808396: DataManager.save() now deletes the autosave file if xml instance is schema valid
+ Added comments to FileTypeHelper

Each check language can now be used in only one compliance check in a rule.
The check language combo box contains only the languages that haven't been used in the rule.
If the user creates a new compliance check after all the check languages have been used, the Check Content tab is disabled.
Fix for bug 2721993.

Extract CheckValues from database and add to the Application.
Fix for bug 2806588.

Do a null check to see if the main window has been initiated when shutting down.
Fix for bug 2800517.

Disable OK or Save button when required fields are empty.

Replaced displayWarningMessageBool with displayWarningMessage.

Replaced GlobalUITools.displayWarningMessageBool() with displayWarningMessage() which has only one button to close the dialog. The new function eliminates the unused "don't show this again" check box functionality.
This fulfills Feature Request 2797570 - "Need single button warning dialog."