Bug 525501 - Move director to Java 8

* Bump BREE
* Bump minor version
* Enable warnings for newer Java versions
* Add missing override annotations.
* Remove redundant type arguments.
* Lambda conversion.

Change-Id: I4e20b1320bb36215b0e0e2f14ed2c87598293f67
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
23 files changed