Update license in pom. Fixes issue 485.
Update license in pom. Fixes issue 485.

fpoyer/osmdroid,DShamaev/osmdroid,osmdroid/osmdroid,Sarfarazsajjad/osmdroid,ak-67/osmdroid,DT9/osmdroid,DShamaev/osmdroid,osmdroid/osmdroid,ak-67/osmdroid,GeoODK/osmdroid,sibext/osmdroid-1,osmdroid/osmdroid,DT9/osmdroid,beemogmbh/osmdroid,osmdroid/osmdroid,mozilla/osmdroid,microg/android_external_osmdroid,dozd/osmdroid,Sarfarazsajjad/osmdroid,1nv4d3r5/osmdroid,beemogmbh/osmdroid,hyl1987419/osmdroid,dozd/osmdroid,GeoODK/osmdroid,prembasumatary/osmdroid,microg/android_external_osmdroid,sibext/osmdroid-1,1nv4d3r5/osmdroid,hyl1987419/osmdroid,prembasumatary/osmdroid,fpoyer/osmdroid