Add logging function that logs to an elasticsearch server

Should NOT be autopulled to production. It requires JDK, elasticseach server and the elasticsearch gem to be installed

- Updates Vagrant config
- Needs more love (it's very stupid, doesn't do much. Just puts everything comming from other users on the server and indexes it)
- Chanlog items should contain channel
- Should probably add an indexing interval instead of running the indexer for each put.

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