Tested with a Kubuntu 14.04 live image.
FIXME: Previews weren't working properly in Kubuntu 14.04.
Perhaps at some point I should just remove KDE4 support.
This fixes e.g. Windows EXE thumbnailing, which is supported by another
plugin on KDE, but not by rom-properties; however, rom-properties *does*
support EXE for properties functions. With both ThumbCreator and
KPropertiesDialog in one .desktop file, all MIME types were taken over
by rom-properties for ThumbCreator, even if those types weren't supported.
Partially based on dolphin-emu:
https://packages.debian.org/sid/games/dolphin-emu
CMake's debian package generator supports generating multiple DEB
packages by component, but doesn't easily allow installing common
files in each (e.g. document files). It turns out that writing
standard Debian package rules got a lot easier now than the last
time I tried (with gens), so we'll use standard Debian rules.
NOTE: Multi-arch is enabled on the KDE 5 plugin, but not the KDE 4
plugin, since the KDE 4 plugin is installed in /usr/lib/. This
shouldn't be an issue in most cases, since most 64-bit Linux systems
don't have many 32-bit KDE applications installed.
TODO: "rom-properties" might not be a valid name due to the hyphen.
I might have to either remove the '-', change it to an underscore,
or something else...
