Actually for the Racial Heritage feat...Lycanthropes can be chosen as they are a Humanoid. I have carefully read this feat several times and looked at the listing of Humanoids and Lycanthropes like the werewolf can be chosen. Aside from the seven core races, featured races or uncommon races from the Advanced Race Guide; any of the races that actually say 'Humanoid' in their typing can be chosen; like for the werewolf...they are Humanoid with the Human & Shapechanger subtypes so Werewolves can be chosen as a racial heritage if the person wants to choose it.
Here is the link to the listing of Humanoids that can be chosen as the target of the Racial Heritage feat:
http://www.d20pfsrd.com/bestiary/monster-listings/humanoids
the site for this link has all the information from all the books and companions, etc from paizo pathfinder.