Merge pull request #196 from vishh/influxdb_batch_issue

Fix bug in influxdb storage driver initialization.
Update README.md for readability and typo fixes

Docker-DCO-1.1-Signed-off-by: Rohit Jnagal <jnagal@google.com> (github: rjnagal)
Merge pull request #197 from rjnagal/bigquery

Update bigquery README.md for readability and typo fixes
Set 'time' column in InfluxDB driver to preserve precision of stats even while batching writes to the DB.