quiver fails when temp_dir is not created by the user

[kretes]

running quiver by default I get exception when waiting for layer visualization:

 No such file or directory: u'./tmp/convolution2d_2_0_20161112121943_52.16916_21.06839_1000006.jpg.png'

seeing that I created ./tmp and after that it works (although it creates and leaves a lot of stuff in there).

I am not sure what is the best way to handle that kind of data but for now maybe simple mkdir -p temp_dir be enough?

[taichu012]

you have to first mkdir the dir manually in this moment.