should be called "Spread this Page"...unless admin can set default URI

Issue Summary

seriously, since it refs the page address from where it is sent, seems like 'spread this page' is a more logical default name - people might be a bit confused thinking that it links to homepage or frontpage

...BUT what might be really nice is an admin option to specify the page to which the links sends a user or even more granular control - for example:

(admin interface, checkboxes/input)
-- ignore page user is on, send all users to {input page here, e.g. /frontpage}
--ignore page user is on, send all users to {input page here} UNLESS page matches that following content type:
----story
----blog
----etc
---ignore (ditto) unless following rules are met (use PHP exclusion to define vocab, terms, etc) - this could be used to handle possible errors related to private nodes that are forwarded outside the site, etc..