Merge pull request #98 from vmarmol/fixes

Remove cpuset cgroup for listing on raw driver.
Enable the simple raw driver.

It doesn't yet get the spec, but it is functional enough to use.
This removed the registration of lmctfy, the code will be removed in a
future PR once raw GetSpec() is complete.
Merge pull request #99 from vmarmol/raw

Enable the simple raw driver.
Remove unused TODO.txt.
Skip influxdb tests for now.
Merge pull request #102 from vmarmol/fix2

Skip influxdb tests for now.
Features:
Added Network Stats to Container Info. It still not exposed via the HTTP UI.
Bug fixes:
1. Modified docker handler to use libcontainer.GetStats instead of quering the fs package.
2. cAdvisor will not stall if any of its core operations fail.
3. cAdvisor will safely ignore any inactive or leaked docker containers. When containers are leaked cgroup state exists but docker is not aware of them.
Adding utils package
Fix raw cgroups handler.
Fixed bugs introduced in previous patches.
Merge pull request #101 from vmarmol/fix

Remove unused TODO.txt.
Addressed comments. Another series of bug fixes.
Modified the docker driver and lmctfy driver to skip containers they cannot handle.
Removed NotActive error message from container package.
Imporved error messages.
Ignore non '/docker' containers in the docker driver.
Docker ListContainers will work only for the '/docker' container.
Merge pull request #96 from vishh/network_stats

Bug fixes and introduces network stats.
Implement GeSpec() in the simple raw driver.
Use latest image so we don't download all images
Merge pull request #103 from vmarmol/fix

Use latest image so we don't download all images
Merge pull request #100 from vmarmol/raw2

Implement GetSpec() in simple raw driver