VKontakte: upgrade vk api version to 5.24 
MarkMessagesRead, RetrieveUnreadMessages RetrieveMessagesByIds and related code was reworked for new api.
part 2 - finish


git-svn-id: http://svn.miranda-ng.org/main/trunk@10409 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
VKontakte: fix for 'To many MarkAsRead', redesign PARAM structure

git-svn-id: http://svn.miranda-ng.org/main/trunk@10410 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
VKontakte: fix for chat messages mistake

git-svn-id: http://svn.miranda-ng.org/main/trunk@10411 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c