[gcmd-dev] mimetype applications configuration

[Michael]

(1) 

It looks like both KDE and Gnome read the 
~/.local/share/applications/mimeapps.list file.
They ignore defaults.list and mimeinfo.cache, in this folder.

However, in global /usr/share/applications/ it is mimeinfo.cache which is 
valued, and updated.
This file seems to be used by gcmd, too, for global setting. But in the users 
~/.local/share/applications/ it is defaults.list only, which gcmd uses.

I am not 100% sure about all this, namely, what happens when one or the other 
file is absent, but at least this is my result from some minutes of testing.

I think defaults.list is obsolete, it is renamed to mimeapps.list, while 
mimeinfo.cache is the global file.

(2) 

Any folder within the applications folder containing a group of applications, 
like the kde4 folder, is referenced like

image/x-dcraw=kde4-dngconverter.desktop

for the file dngconverter.desktop in the applications/kde4 folder.