Work on Hunter class

Added hunter class abilities not present in playtest. Hunter playtest
was not a spontaneous caster, fixed. Added known spells limits and
automatic spells "Summon Nature's Ally". Still a problem with
SPELLLIST:2|Druid|Ranger not working right. i.e. Ranger spells of lower
level than Druid spells are still not showing inthe proper lower level
spell list.