Add Kuromoji analaysis plugin package.

Package the current version (1.1.0) of the Elasticsearch Kuromoji
Analysis plugin.
Switch to new source locations.

Update the spec file source locations to point to the new
Elasticsearch download service.
Merge pull request #27 from wotifgroup/kuromoji-plugin

Add Kuromoji analaysis plugin package.
Merge pull request #28 from wotifgroup/new-download-locations

Switch to new source locations.