Backport of elasticsearch to jessie

[Hilko Bengen <bengen@debian.org>]

Hi,

I intend to upload a backport of elasticsearch/1.6.1+dfsg-1 together
with a few needed dependencies.

Updates to existing source pacakges in jessie:

- apache-log4j1.2/1.2.17-6
- guava-libraries/18.0-4 (waiting to migrate to testing).

Source packages not in jessie:

- lucene4.10/4.10.4+dfsg-1
- apache-log4j-extras1.2/1.2.17-1
- mustache-java/0.8.17-4
- t-digest/1:3.0-1

Cheers,
-Hilko