Clandestine Cake

I've added both hdn_abandoned and hdn_forsaken_b4a. I know they're the same map but according to the map stats they both get played quite a bit.

Current list of voteable maps is now...
» hdn_abandoned
» hdn_deadmeatb4b
» hdn_decay
» hdn_deltalab_b2
» hdn_derelict
» hdn_discovery
» hdn_dispatch
» hdn_docks
» hdn_executive
» hdn_forsaken_B4a
» hdn_greenhouse_v3
» hdn_highrise
» hdn_highwaters_b2
» hdn_manufactory_b7
» hdn_manor_b4a
» hdn_mobscene
» hdn_psychiatry_b3
» hdn_ravenholm
» hdn_sewers
» hdn_stalkyard
» hdn_traindepot
» hdn_veikko

and as usual, voting is disabled while on a custom map so that it cycles back to a normal one.