Fix for succ_gavelkind potential; removed condition barring baronies
Fix for failure to copy grantee succ_law_title succ. laws upon grant

Behavior now properly mirrors that of vanilla, yet manages to maintain
PB's special allow = { } conditions, unused by vanilla and other major
mods for succession laws for a reason. Thank is_recent_grant and the
fact that 'recent' is shorter than the manual succession law change
minimum time since grant/usurp/inherit (in defines.lua).  Still a
poor substitute for a proper pass_allow = { } to correspond with
pass_effect = { }.
Merge pull request #163 from zijistark/alpha

Succession law title laws copy grantee upon new grant + 1 major one-liner