Bug 521839 - Move discovery bundle to Java 8

* Bump BREE.
* Bump minor version for the BREE change.
* Enable more warnings.
* Remove redundant type declarations.

Change-Id: I9b595b0c7481280b3ad8f308a55ff32936ac7bbf
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
9 files changed