Added Makefile with test command.
Added setup to makefile.
Added testing info to readme.
Added ability to create binds when starting a container.
Added content-type header to the `post_json` method, some routes need it.
Added documentation about the `binds` argument in the `start` method.
Merge branch 'upstream-master' into bind-mounts

Conflicts:
	tests/test.py
Added option to attach on containers and be verbose on build process
Fixed bug by which c.port('<id>', <port>) would fail because when port not a string

e.g. 
c.port('e087bc23f8d5', 80)

would fail

and 
c.port('e087bc23f8d5', '80') would work. I now inserted str() so it should always work.
Added ability to create binds when starting a container.
Revert "Added Makefile with test command."

This reverts commit 8bab36469dd0854a1b76f56f2a0a5f4367b30c0e.

Conflicts:
	Makefile
Fixed whitespaces on readme and removed makefile references.
Removed duplicated import.
Merge pull request #16 from globocom/bind-mounts

Add support for bind mounts