CRM-15251 - Contact details revealed when certain URLs indexed by search engines

Added No Follow and No Index to:
Petition Confirmation pages
Mailing Optouts & Unsubscribe pages
Mailing Subscription Confirmation pages

Conflicts:
	CRM/Mailing/Form/Optout.php
	CRM/Mailing/Form/Unsubscribe.php
CRM-15251 4.4 class variants
 CRM-12679 Fix Paypal Express Recurring IPN not working ...

Record Paypal express ipn contributions from recurring

Remove duplicate handlePaymentExpress

fix Paypalexpress IPN for renamed PaymentProcessorType DAO
CRM-12679 use less granular date to reflect JonG's comments
CRM-12679 - fixing paypal ipn test so it works with latest pp code.

----------------------------------------
* CRM-12679: Paypal Express Recurring IPN not working?
  https://issues.civicrm.org/jira/browse/CRM-12679
Merge pull request #4460 from eileenmcnaughton/4.4

CRM-14800 fix - Contact merge deletes a contribution record if it is lin...
Merge pull request #4461 from eileenmcnaughton/CRM-12679

 CRM-12679 Fix Paypal Express Recurring IPN not working ...
Merge pull request #4422 from eileenmcnaughton/CRM-15251

CRM-15251 prevent indexing of some urls
CRM-14152 only join to civicrm_participant line items
Merge pull request #4472 from agh1/crm-14152

CRM-14152 only join to civicrm_participant line items
increment version to 4.4.9