Fixed import issue
Merge branch 'master' of github.com:WoltLab/WCF
Fixed label import issue
Fixes issue with user activity point object processors
Merge branch 'master' of github.com:WoltLab/WCF
Prevent possible issues with gzip compression headers

Fixes #1405
Merge branch 'master' of github.com:WoltLab/WCF
Preventing label class 'none' from being actively used
Added support for default values for group 'Guests'
Added ACL importer
Added user merge
Adding <userdefaultvalue> to UserGroupOption-PIP
Removed column 'adminDefaultValue'
Added SQL update
Merge branch 'master' of github.com:WoltLab/WCF
UserGroupOptions now behave the same as back in WCF 1.x
Fixed install SQL
Fixes typo in UserGroupOptionPackageInstallationPlugin
Added better default options for guests/registered members
Fixes drop down menu position after window resize

Fixes #1403