extauth_cache can have value 0
Temporary room not destroyed when the last participant is expulsed (EJAB-520)
Fix small bug in presence_based_delivery implementation
Merge pull request #195 from Iperity/master

Fix small bug in presence_based_delivery implementation
store item when persist_item=false and cache_last_item=false but need last_item
Document that ejabberd compilation requires pkg-config
avoid sending empty events
avoid sending duplicated events
Recompile the ejabberd Guide html
remove compilation warnings
Merge branch 'master' of github.com:processone/ejabberd