3514 rename and remove some wrangling links

http://code.google.com/p/otwarchive/issues/detail?id=3514 

1) Change the "Mass Wrangling" text on the wrangling dashboard to "Wrangling Tools"
2) Remove "Relationships by character" from the wrangling dashboard
3) Remove the "Most recent works in your fandoms" button from the wrangling homepage