Merge pull request #128 from gluck/master

Add support for geo_point type and missing query
Support geo_point column and timestamp formatting

geo_point types were previously not displayed in table output because
they falled under isArray block
Now if I find a matching field in the metadata, I stop digging into the
JSON.
(the custom query code may not cover every use case as there's no
metadata)

date type columns are now displayed in UTC format in table output (JSON
and CSV unchanged)
Merge branch 'master' of https://github.com/mobz/elasticsearch-head