Add links to use profiles in edit, view and search modes from profile listings page

Add links to the 'more' actions pop-up menu for the following Profile modes / URLs:

• Use Profile-Edit Mode: Included if Used For = Profile and Type = Individual or Contact. Goes to profile/edit URL and loads the logged in user's contact record. Pretty sure that users always have permission to edit their own contact record if they've gotten this far - so don't need to check permissions prior to including this link in the 'actions'.

• Use Profile-View Mode: Same conditional rules for including as Edit Mode above. Goes to profile/view and loads the logged in user's contact record.

• Use Profile-Search Mode: Included if User For = Profile and Type = Individual, Org, HH and/or Contact. Goes to profile&gid=N URL (search form). We'll skip drilling down into the profile fields to see if any are "Searchable". If user clicks this link and the profile fields are not configured for search they'll get the descriptive error (and fix things if they want to use it for a search interface).

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Background here:
http://forum.civicrm.org/index.php/topic,11141.msg48029.html#msg48029