API: re factored Hierarchy class to use new ::get() syntax
API: removed broken & unused method Hierarchy->partialTreeAsUL()
Merge pull request #1275 from Zauberfisch/hierarchy

API: Hierarchy class cleanup
More upgrading notes about 3.1 and statics
FIX Fallback for Session.cookie_path

Regression introduced by Config API static changes.
Effectively meant that you can no longer log in to the CMS
since the cookie path is set for each URL individually...
Fixed config API usage (unknown call to set())
Removed Object::*_extension() non-LSB deprecation

Its just a simplication, and unnecessarily complicates
module compatibilities.
FIX: Groups should be able to have titles longer than 50 characters (Fixes: open/5611)
Merge pull request #1334 from wilr/5611

FIX: Groups should be able to have titles longer than 50 characters
Fixed static config access in Currency and i18n (fixes #8341)
Fixed static config in BBCodeParser (fixes #8340)
FIX Clone Config_LRU incl. objects in array

Caused key confusions when using Config::nest()/unnest()
Clarified 3.1 upgrading docs
Merge pull request #1335 from chillu/pulls/config-clone-nest

FIX Clone Config_LRU incl. objects in array