Remove requirement for rootfs path to be relative

Closes opencontainers#389

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>

Author: mlaventure

bundle.md

@@ -8,10 +8,10 @@ See also [OS X application bundles](http://en.wikipedia.org/wiki/Bundle_%28OS_X%
 The definition of a bundle is only concerned with how a container, and its configuration data, are stored on a local file system so that it can be consumed by a compliant runtime.
 
 A Standard Container bundle contains all the information needed to load and run a container.
-This includes the following artifacts which MUST all reside in the same directory on the local filesystem:
+This MUST include the following artifacts:
 
 1. `config.json` : contains configuration data.
-This REQUIRED file, which MUST be named `config.json`.
+This REQUIRED file MUST reside in the root of the bundle directory and MUST be named `config.json`.
 When the bundle is packaged up for distribution, this file MUST be included.
 See [`config.json`](config.md) for more details.
 

config.md

@@ -25,7 +25,7 @@ NOTE that there is no guarantee for forward or backward compatibility for versio
 
 Each container has exactly one *root filesystem*, specified in the *root* object:
 
-* **`path`** (string, required) Specifies the path to the root filesystem for the container, relative to the path where the manifest is. A directory MUST exist at the relative path declared by the field.
+* **`path`** (string, required) Specifies the path to the root filesystem for the container. A directory MUST exist at the path declared by the field.
 * **`readonly`** (bool, optional) If true then the root filesystem MUST be read-only inside the container. Defaults to false.
 
 ### Example