Particle tweaks.

Mediterranean Cove skirmish map.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@14888 3db68df2-c116-0410-a063-a993310a9797
Workaround for GCC bug to disable compiler warning

Only works when using the bundled SpiderMonkey and not when using --with-system-mozjs24 (because it patches the bundled headers).
ESR31 doesn't have this issue anymore, so this workaround should be enough until then.

Refs #1886


git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@14889 3db68df2-c116-0410-a063-a993310a9797
Merge 'remotes/trunk'