0.4.0 released - Comments are appreciated

[hhasert]

Dear testers,

I have released 0.4.0 where setting priority on files is implemented.
For me, most of the needed functionality is operational, so I will
start on getting some usability issues addressed (like keeping the
selection after the refresh of one of the panes) and probably extend
the information on the settings tab.

I am kinda hitting a spot where I would like some input on where to
concentrate my efforts next. Options like color schemes and
multilingual are a bit of a challenge right now, so I will only spend
time on it when there is a high demand. So, please reply to this post
with suggestions or open an issue and I will respond with the priority
I will assign to it.