fixed fallback to old son version due to missing osgi info in gson 2.8
fixed fallback to old son version due to missing osgi info in gson 2.8

gson 2.8.1 has not been released, and it seems the build did fall back
to a very old version of goon because of that. Until the fix is out we
use 2.7

swookiee/com.swookiee.runtime,swookiee/com.swookiee.runtime,swookiee/com.swookiee.runtime,swookiee/com.swookiee.runtime