pairings, ships, gen, category stuff update

[aethel]

Some results of the relationship template/category discussion include a new hierarchy:

Category:Relationships

Category:Gen Relationships
Category:Pairings
Category:Moresomes

(Moresomes to appear in the Pairings category as well due to differing definitions of "pairing")

Another discussion underway between Espresso Addict and me could turn into an epic categorizing project: creating gen, femslash, etc. fandom categories, as well as subcategories for fanwork genres.