Tag Alias: apocalyptic -> post-apocalyptic

Aliasing apocalyptic -> post-apocalyptic.

Reason: Same concept.

Should NOT be aliased from apocalypse (which would be the act itself).

Apocalyptic as a word has a meaning closer to that of apocalypse than post-apocalyptic, so shouldn't it be aliased to apocalypse instead (and have the wiki entry explain the differences?)

I'm in favour of nouns, so I prefer these tag aliases:
apocalyptic -> apocalypse
post-apocalyptic -> post-apocalypse

Agree with dean exia's list. Done.