Specify stack size in Thread class


the default stack size of threads created with the Thread class (512kb on osx) is to small for some of my purposes. For now, I have altered the class with an optional call to pthread_attr_setstacksize as a workaround. Would it be possible to add support for that in the library?

Thanks a lot!

Thanks for the suggestion. I've added this to the constructor of JUCE thread on the latets tip.