Fix terrain derived data update (bug 534, bug 544)
better place for syncing
Merge branch 'master' of git://github.com/zinnschlag/openmw into terrainfix
updated changelog for 0.21.0 again
adjusted gcc settings again to avoid problems with older compiler versions
cleaned up object movement and fixed a bug regarding local scripts
Cache integrity check uses relative paths, so that changing the build folder works without reset
Merge remote-tracking branch 'upstream/master' into portability