no need to gunzip the .csv

Hey,

you can read the gzipped file directly if you drop in a [gzip.Reader](http://golang.org/pkg/compress/gzip/#Reader) from `compress/gzip`  between the `os.Open` and `csv.NewReader`. Thereby not wasting precious disk space and you can keep seeding the original file without having both lying around... :wink:

The speed difference is also negligible (I indexed half a million docs with both approaches).
The Indexing is still much heavier.

Btw: you could also drop the `tpbFileHandler` and replace it with [go-bindata-assetfs](https://github.com/elazarl/go-bindata-assetfs) which you can feed to [http.FileServer()](http://golang.org/pkg/net/http/#FileSystem).