Info panel: Shorten memory line and simplify code a bit
With the fonts I use here, the memory information line in the "Info panel"
did not fit inside the window. So make that line a bit shorter by displaying
Total memory allocated: 2600 kB (in use: 2182 kB)
instead of
Total allocated memory: 2600 kB. Total memory in use: 2182 kB.
Furthermore, the surrounding code was a bit convoluted to display either
"Additional support for: WMSPEC"
or
"Additional support for: WMSPEC and MW"
As WMSPEC is always present and it doesn't seem we are adding more stuff
to support, one can do the same with a shorter code which reads a little
bit better.