[TEST] fix tests

Tests fail because we now disable automatic plugin loading from the classpat when running tests

(cherry picked from commit c5554ad)
Update to Lucene 4.9.0 / elasticsearch 1.3.0

Closes #15.
Related to #13.

(cherry picked from commit 8f077d6)
Update to elasticsearch 1.4.0

Closes #14.

(cherry picked from commit 8d677aa)