fixed bug wherein configuring market source fields available for share links did not filter the list on the global admin screen.
removed all reference to blacklist function as this functionality is now handled by configuration on MS admin screen.
shuffling functions around to avoid circular dependencies.
unset blank date fields when syncing
added an attribute to facebook share links to ensure the correct url is shared
Merge pull request #382 from JacksonRiver/7.x-4.x-689-social-fb-integration-changes

added an attribute to facebook share links to ensure the correct url is ...
Add space after elseif per Drupal coding standard.
Merge pull request #379 from JacksonRiver/7.x-4.x_Blank_Drupal_Date_Syncs_as_1969

unset blank date fields when syncing
Merge pull request #368 from JacksonRiver/7.x-4.x-621-social_admin_form_market_source_bug

fixed bug wherein configuring market source fields available for share l...
adding default last name, admin pages, and fail_item hook
Merge pull request #386 from JacksonRiver/7.x-4.x-700-npsp-lastname

adding default last name, admin pages, and fail_item hook
Merge branch '7.x-4.x' into 7.x-4.x-upsell_port_from_sb3