Fix the file open mode for the tar file from text mode to binary mode
Merge pull request #19 from kmullin/fix-build_from_dir

Fix the file open mode for the tar file from text mode to binary mode
Now allowing `Docker.url` and `Docker.port` to be set from ENV variables.
Added a README example for configuration via ENV variables.
Minor version bump (1.3.0)
Changed `DOCKER_URL` to `DOCKER_HOST`
Merge pull request #20 from swipely/add-env-variables

Add env variables
Update README.md

Changed example JSON return value "Id" to "ID"
Merge pull request #21 from jimrhoskins/patch-1

Update README.md
Added the MIT license.
Merge branch 'master' of github.com:swipely/docker-api
Added simplecov.

To ensure the future quality of docker-api, I added simplecov which
returns metrics on the amount of code that has been tested. Currently,
we are at 90.28% coverage in the lib/ directory.
Merge pull request #23 from swipely/add-simple-cov

Added simplecov.
In `Docker::Image#build_from_dir`, now only closing the tar if it
exists. This happens when the `create_dir_tar` method fails.
Patch version bump (1.3.1)
Merge pull request #24 from swipely/fix-build-from-dir

Fix build from dir
Migrated the existing commands to the new API version.

This mostly consisted of re-recording VCRs and modifying specs.
Add the Container#top command.

This command returns the currently running processes in a Container.
Update the README

- Describe the `Docker::Container#top` method
- Change the compatible version of Docker to `0.5.1`
- Change the documentation link to version `0.1.4`
Minor version bump (1.4.0)

Although there were no backward incompatible changes since `1.3.1`,
Docker has changed the output of its API in the most recent version.
Also, the `Docker::Container#top` method was added.