make it work with elastic search 0.90.5

The problem described in:
https://github.com/medcl/elasticsearch-analysis-ik/issues/18

This pull request looks scary than it should be. The reason is that the original repo does not really 'git friendly'. I re-add the files according to this:

http://stackoverflow.com/questions/1889559/git-diff-to-ignore-m

Please let me know if there are questions or I need to change anything. Thank you!