Changes for WBB 4
removed not longer needed if
removed feedhandling, as there are no longer thread feeds
removed module option for feeds, activate plugin as default
raised version to 3 as there is already a version 2 to avoid confusions
check if variable is set
fixed category for groupoption
some minor changes to language
Changes license and version
added userdefaultsetting
added option for reverted threads
languages
changed license, added revert for threads
Changed license