Merge pull request #214 from vmarmol/ui

Don't try to draw graphs we don't have data for.
supports backend storage in in-memory storage
Improve error reporting on bigquery row insertion failure.

Docker-DCO-1.1-Signed-off-by: Rohit Jnagal <jnagal@google.com> (github: rjnagal)
remove Samples() Percentiles() from influxdb driver
remove Samples() Percentiles() from bigquery storage driver
Merge pull request #217 from rjnagal/bigquery

Improve error reporting on bigquery row insertion failure.
Only register the Docker driver in systems using libcontainer.
Merge pull request #215 from vmarmol/docker-lxc

Only register the Docker driver in systems using libcontainer.
Updating CHANGELOG and version for 0.3.0 release.
Merge pull request #219 from vmarmol/release

Updating CHANGELOG and version for 0.3.0 release.
panic->error
remove debug code
delete data from influxdb after unit test
glog.Infof()
remove string rep of time
parenthesis.
Merge pull request #218 from monnand/write-only-storage

Write only storage: Part 1
Prepare housekeeping interval to be dynamic.

Change housekeeping to be from a fixed interval to a possibly varied
interval decided by nextHousekeeping().
Remove memory storage driver and make empty the default.

This fixes the current cAdvisor HEAD.
Merge pull request #221 from vmarmol/fix

Remove memory storage driver and make empty the default.