[SECURITY] default-java switch to OpenJDK 7 and java-common update

Package : java-common Version : 0.47+deb7u1 In preparation for the upcoming default-java switch to OpenJDK 7 on 26 June 2016, the java-common package was updated to inform users about the intended change. The news will be automatically shown, if apt-listchanges has been installed on the system...