Links to some ruby gems

Hi,
I've added some links to ruby gems which might be useful for the community. They are:

influxdb-api (https://github.com/undr/influxdb-api) - alternative ruby client. It provides convenient access to almost all API endpoints (v0.8)
inffluxdb-arel (https://github.com/undr/influxdb-arel) - query builder. It simplifies the generation of complex SQL queries for influxdb.

I'm going to keep improve them.  I wish to share them with community.