[Fix] Fixed memory leak in internet update code when download code fails (which practically shouldn't happen at all)
[Mod] OpenMPT: Version is no 1.19.02.00

git-svn-id: https://source.openmpt.org/svn/openmpt/trunk/OpenMPT@871 56274372-70c3-4bfc-bfc3-4c3a0b034d27