* Improved line protocol performance

* line protocol: handle None tags and fields
* line protocol: time precision support - timestamps that
  are send as integers are left intact but other timestamps
  are converted depending on the time precision
* line protocol: Handle field string values with several newlines

* Moved tests to influxdb package

* Added support for INFLUXDB_PYTHON_SKIP_SERVER_TESTS

* influxdb08: Requests - catch Timeouts

* Enable doctests

* Ensure tests pass without influxdb bin

* Fixed bad 'SHOW RETENTION POLICIES' syntax

* Make use of the new line protocol API

* Convert NaN values to None in numpy arrays

* New query option: raise_errors

* Added warning on ResultSet's __getitem__ and documented its replace…

…ment

* Fixed issue where raising exception would fail

* Replaced ResultSet's ``__getitem__`` by ``get_points``

* Fixed issue with delete_series

* Fixed issue where DNS would not work when passwords use caps
* "name" -> "measurement"

* Adapted DataFrameClient to InfluxDB 0.9.0

* Adapted expected response codes to InfluxDB 0.9.0-rc30