Facebook: Correct trimming of messages and not receiving empty ones.

git-svn-id: http://svn.miranda-ng.org/main/trunk@4923 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Facebook: Fixed and improved duplicit messages checking. Version bump.

git-svn-id: http://svn.miranda-ng.org/main/trunk@4924 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
WhatsApp: added version.h to project

git-svn-id: http://svn.miranda-ng.org/main/trunk@4925 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Skype memory leaks fixed

git-svn-id: http://svn.miranda-ng.org/main/trunk@4926 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
buffer overrun fixed

git-svn-id: http://svn.miranda-ng.org/main/trunk@4927 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
fixed memory allocation

git-svn-id: http://svn.miranda-ng.org/main/trunk@4928 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c