DRTVWR-476: Update zlib, freetype, libpng, boost, openssl, libxml2,...

DRTVWR-476: Update zlib, freetype, libpng, boost, openssl, libxml2, googlemock, google_breakpad, curl, colladadom

Update zlib to codeticket version 538988.
Update freetype to codeticket version 539865.
Update libpng to codeticket version 539868.
Update boost to codeticket version 539869.
Update openssl to codeticket version 539874.
Update libxml2 to codeticket version 539866.
Update googlemock to codeticket version 539876.
Update google_breakpad to codeticket version 539880.
Update curl to codeticket version 539883.
Update colladadom to codeticket version 539922.