Merge "change directory name" into nyc-dev

     * MAC_PERMISSIONS class variable which is set at class load time which itself

     * is based on the USE_OVERRIDE_POLICY class variable. For further guidance on

     * the proper structure of a mac_permissions.xml file consult the source code

     * located at external/sepolicy/mac_permissions.xml.

     * located at system/sepolicy/mac_permissions.xml.

     *

     * @return boolean indicating if policy was correctly loaded. A value of false

     *         typically indicates a structural problem with the xml or incorrectly

 * {@link Policy#getMatchedSeinfo} method. To create an instance of this use the

 * {@link PolicyBuilder} pattern class, where each instance is validated against a set

 * of invariants before being built and returned. Each instance can be guaranteed to

 * hold one valid policy stanza as outlined in the external/sepolicy/mac_permissions.xml

 * hold one valid policy stanza as outlined in the system/sepolicy/mac_permissions.xml

 * file.

 * <p>

 * The following is an example of how to use {@link Policy.PolicyBuilder} to create a

     * A nested builder class to create {@link Policy} instances. A {@link Policy}

     * class instance represents one valid policy stanza found in a mac_permissions.xml

     * file. A valid policy stanza is defined to be a signer stanza which obeys the rules

     * outlined in external/sepolicy/mac_permissions.xml. The {@link #build} method

     * outlined in system/sepolicy/mac_permissions.xml. The {@link #build} method

     * ensures a set of invariants are upheld enforcing the correct stanza structure

     * before returning a valid Policy object.

     */