Fix dependencies
Fix dependencies

- Use explicit Java 8 devel dependency in BuildRequires
- Jetty should require Weld 2.2 instead of bundling it
- Explicitly request Log4j version 1.2 on Fedora

Change-Id: I372d815b813dc58397c4120328f62f1064b651ef
Signed-off-by: Martin Sivak <361315d85e190db42db95eaca639c05fa7701076@redhat.com>

oVirt/ovirt-optimizer,oVirt/ovirt-optimizer