multilink 6.x-2.1

Adds two new submodules:

MultiLink SecurePages

Links generated by the MultiLink filter will be http or https as defined by Secure Pages.

MultiLink Redirect

Will redirect requests to a node to the translated version (if available.) Provides much of the functionality of Global Redirect but using the same rules used by the MultiLink filter to determine which page (node) should be served (the exact behaviour of Global Redirect on a multi-language site is currently undefined - see #201675: Redirect to version in native language.)

If MultiLink SecurePages is also installed, then the user will be redirect to an http or https version of the target page, as defined by SecurePages configuration. Addresses an issue in the current version of Secure Pages that prevents correct redirection in some situations - see #591116: Multi language issue (nearly a year after patches; resolved in new release??!).