[important] Domain height issue.

[conaghili]

Hi all,

I don't have much time to address this however for the domain height / top of model Hysplit webclient is using 17k
to fix this discrepancy I edited Line 459 in trajectory_generator.py when i was working on this a few weeks ago.

This is 10k by default. There should be an option to change this in future.

[mscross]

Would you like to make a PR?