Sets verbosity level to 'silence' for applications

[jafrog]

I'm not sure if this is good as a default option, but I believe it would solve a lot of cases of this issue (see my comment on the issue).

[jonleighton]

Thanks for researching this issue, however this doesn't seem like an ideal fix to me, and I imagine that it might not fix all scenarios where that bug might occur. Therefore I'd prefer to hold out for a proper fix which prevents spring from hanging in the first place (rather than preventing the situation where spring hangs). Perhaps you could try to write a test case for this scenario as a first step?