Added tag 0.9.20-release for changeset af0520a6bf00

remove one spurious WARNING tag from cmake message

merge from .20 again

improve OSX SDK selection when build and deploy target don't match

switch every optimization from Os to O2 Also move 'disable optimizations' in the internal pascal file for debug mode.

missed this in the merge. rejected the uGearsHandlersMess changes thinking they were all desyncing, but there was the function rename from uLandGraphics

Some fixes

move CMAKE_Pascal_FLAGS_* flags after enabling the Pascal language or they get overwritten

Not a thing which is needed in release tarball

merge safe fixes from default. physfs include order, tips file length check, server checker fixes, shoppa border fix, land drawing optimisations, physfs off by 1 (probably unused by us), rubber svg image