new version support 2.4.1
new minor version for 2.4.0
elastic 2.4.0 support
elastic 2.3.5 support
new version 2.3.1.1
update es version
Merge branch 'elastic2.3.2' of github.com:NLPchina/elasticsearch-sql … …into elastic2.3.3
fix test case
add 2.3.1 support
csv test options for java7