Updating to the latest HBase 0.95.2

Please review this latest update. I'm reasonably happy with everything here, except for the fact that I had to add 'throws /*Replication*/Exception' to SepModel and SepModelImpl. If you know of an easier better way -- I'd love to find that out.

If not, I suggest that this gets merged into the master at some point. All the unit tests in both profiles pass and we will keep hacking on the 0.95.2+ side so it would be extremely nice not to diverge.

The only issue that still seems to be there is the failing SepConsumerIT test in 0.96 profile. I'll try to debug it but it doesn't affect the build in general and it can be taken care of later.

Thanks,
Roman.