VAT-638 Checked and unchecked the Invoice/Credit Notes option when switch on invoicing and added help text for it. Remove email/print option from search contribution when invoicing is off.
VAT-638 Code indented properly.
Merge branch 'VAT-638' of github.com:Parag18/civicrm-core into Parag18-VAT-638

Conflicts:
	CRM/Admin/Form/Preferences/Contribute.php