tweak sizes and alignments

thin font was not rendered properly in osx. workarounds no longer
necessary; main.cpp tried a font load that doesn't need to be done in
c++.

it will be disabled if Tor not present, for now

plus work on the systray menu

icons, new font

webapi mainly for tests, but it's usable too

- Resolves: #334

Signed-off-by: kali kaneko (leap communications) <kali@leap.se>

Signed-off-by: kali kaneko (leap communications) <kali@leap.se>