Make GlobeGPS a dummy on android
Disable usermanual on android
Stub out the printing support on android
Only rely on pkg-config when building for android

Its easier to have qmake pickup the pkg-config files than the shell
scripts, so don't run them when we building for android. We might pick
up the hosts version of the libraries form the scripts

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Introduce android specific file