Make post/index headers the same; fix link metatag

cc @Aeyoun

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Apply ~1 to bs3; fix use_bundles=False in bs3

cc @Aeyoun — there was something terribly wrong with inheritnance here.

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>