This fixes the python 3.7 incompatibilities arising from 'async'
becoming a reserved word.
The file lib/solaar/async.py is renamed to asks.py. I picked the name
because it defines the TaskRunner class and it's the best I could come
up in fifteen seconds.
The async function in solar/ui/__init__.py is renamed to ui_async, and
the various imports of that function are changed to match.
Without this patch it doesn't build at all. I am running with this
patch applied and everything appears to work as expected.
Signed-off-by: Jason Tibbitts <tibbs@math.uh.edu>