msvc

Hello! When https://download.qt.io is not available it is not possible to use mirrors from the settings.ini config to list available tools:

$ aqt list-tool linux desktop
'NoneType' object has no attribute 'find_all'
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/aqt/installer.py", line 108, in run
    args.func(args)
  File "/usr/local/lib/python3.8/

If users want to perform the full analysis, they have to type --analyze_all (or add as many --analyze_ options as desired).

Can't we make this flag optional, and set by default?
When users want only one part of the analysis, this flag would become disabled instead.