Update to ES v2.4.5

Fix version numbers in readme

Bump version number

Merge remote-tracking branch 'origin/master'

Conflicts:
	README.md
	pom.xml

Update to ES v2.4.4

Update to ES v5.1.1

Update to ES v2.4.3

Fix inconsistent highlighting. Remove uses of ImmutableList.

Remove jdk7 from travis.yml

Merge pull request jlinn#13 from zakird/master

Add support for latest release of Elasticsearch: 2.4.1