go-app-engine: symlink goapp executable.

Closes #24556.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
qt: added Mavericks font fix patch.

Closes #24479.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
pngcrush 1.7.60

Closes #24559.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>