always catch Failure (needs to print actual output when running commands)

git-svn-id: http://haxe.googlecode.com/svn/trunk@6276 f16182fa-f095-11de-8f43-4547254af6c6
ignores

git-svn-id: http://haxe.googlecode.com/svn/trunk@6277 f16182fa-f095-11de-8f43-4547254af6c6
Merge branch 'haxe/master'