Adds backlinks to the success screen after closing reports (#12905)
Some style and language fixes (#12493, #12235, #11235, #11949) - the latter is still not perfect.
Added code to the phpBB2 converter to deal with slashed quotes (#12607)
Changes and adds language entries :)
git-svn-id: file:///svn/phpbb/trunk@7822 89ea8834-ac86-4346-8a33-228a782c2dd0