- Parser now takes options for Lenny, such as widget stylesheet,
zoomlevels, QML source (lets you import a file from the filesystem to
use, if not specified the internal one is used) as well as shell options
for launching.
 - Extensive skinning is possible by importing a QML file.
 - Now supports launching the programs that are selected.
 - You can now launch it with a JSON file as argument, it will then
parse this and use it. If one is not specified, one can make use of the
"Open file" option in the menu.
 - Still need to connect the QStandardItemModel to the QML side of
things. At the moment QML doesn't seem to recognize the roles in the
QStandardItemModel (strings turn up as [undefined]), making it seem as
if they are not set at all.

BUG: One can only import one file per session, either through the
positional argument or the menu entry. Something causes a segfault.
BUG: Program closes with a SIGSEGV. Something is not being handled
correctly. (Oh golly, I wonder what isn't handled wrong.)