Bug 521075 - Move o.e.equinox.p2.director.app to Java 8 

Bump minor, add missing Override annotations, remove duplicate type
declarations, try-with-resources,

Change-Id: I49d32d9227c84b3c2b3a5d82e0e9ebfe74f20ac7
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
9 files changed