implement "-c" option to allocate a number of CPU shares to a container
if -c is not specified, do not set cpu.shares (instead of using the default value of 1024)
in the tests, use a non-default value for cpu.shares
propagate CpuShares in mergeConfig
Major rearrange of the documentation.
Updated commands index to show better title.
Small syntax fix in couchDB
Merge branch 'master' of github.com:dotcloud/docker into 471-cpu-limit
Made AWS region and ami to be configurable through the ENV variables.
Fixes the README build example to make it work
Added install instructions for RackSpace cloud using Ubuntu 12.04, 12.10, 13.04
updated the rackspace docs to have more information, and fixed a couple of mistakes
fixed the git clone url, it was the read-write one that required ssh access to the docker account, changed to the read only version
fix error message in export
refactor commands.go into an object, will be easier for tests
removed only_ids and trunc_cmd from the api
add -notrunc on docker images
fix error push
Change t.Skip to t.Log in tests for go1.0.3 compatibility
Merge pull request #595 from dotcloud/typo_error-fix

Small fix about the error in push
Merge pull request #587 from zimbatm/fix/readme-build-example

Fixes the README build example to make it work