change run name format

[jacobsn]

I think a better format would be something like:

[network name][string w/o an underscore (network configuration)][string w/o an underscore (training configuration)]

The two "strings w/o an underscore" would be parsed inside of the respective functions. This would allow us to put more network-specific options in the configuration format... for example, not every network needs two capacity parameters, but we are stuck with that in the current format.

This is not a change I think we should make before the end of the contest, but it is probably worthwhile if we choose to fork this repo to work on another challenge.